diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..708e5da
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,23 @@
+#   Copyright 2017 Aviral Dasgupta
+#
+#   Licensed under the Apache License, Version 2.0 (the "License");
+#   you may not use this file except in compliance with the License.
+#   You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS,
+#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#   See the License for the specific language governing permissions and
+#   limitations under the License.
+
+root = true
+
+[*]
+charset=utf-8
+end_of_line = lf
+insert_final_newline = true
+indent_style = tab
+indent_size = 2
+trim_trailing_whitespace = true
diff --git a/composer.lock b/composer.lock
index 1fdc435..880f52b 100644
--- a/composer.lock
+++ b/composer.lock
@@ -27,7 +27,6 @@
                 "phpunit/php-code-coverage": "^7.0",
                 "phpunit/phpunit": "^8.5"
             },
-            "default-branch": true,
             "type": "library",
             "extra": {
                 "branch-alias": {
diff --git a/lib/Controller/Errors.php b/lib/Controller/Errors.php
index d118e8c..7fcb2d6 100644
--- a/lib/Controller/Errors.php
+++ b/lib/Controller/Errors.php
@@ -3,7 +3,7 @@
 namespace OCA\UPschooling\Controller;
 
 use Closure;
-use OCA\UPschooling\Service\NoteNotFound;
+use OCA\UPschooling\Exceptions\TicketNotFoundException;
 use OCP\AppFramework\Http;
 use OCP\AppFramework\Http\DataResponse;
 
@@ -11,7 +11,7 @@ trait Errors {
 	protected function handleNotFound(Closure $callback): DataResponse {
 		try {
 			return new DataResponse($callback());
-		} catch (NoteNotFound $e) {
+		} catch (TicketNotFoundException $e) {
 			$message = ['message' => $e->getMessage()];
 			return new DataResponse($message, Http::STATUS_NOT_FOUND);
 		}
diff --git a/lib/Controller/TicketApiController.php b/lib/Controller/TicketApiController.php
index bdaefb3..0f58359 100644
--- a/lib/Controller/TicketApiController.php
+++ b/lib/Controller/TicketApiController.php
@@ -54,11 +54,9 @@ class TicketApiController extends ApiController
 	/**
 	 * @NoAdminRequired
 	 */
-	public function update(int $id, string $title, string $content): DataResponse
+	public function update(int $id): DataResponse
 	{
-		return $this->handleNotFound(function () use ($id, $title, $content) {
-			return $this->service->update($id, $title, $content, $this->userId);
-		});
+		return new DataResponse($this->service->assign($id, $this->userId));
 	}
 
 	public function destroy(int $id): DataResponse
diff --git a/lib/Db/TicketMapper.php b/lib/Db/TicketMapper.php
index 98a0a06..b7c1fc4 100644
--- a/lib/Db/TicketMapper.php
+++ b/lib/Db/TicketMapper.php
@@ -17,19 +17,40 @@ class TicketMapper extends QBMapper
 
 	/**
 	 * @param int $id
-	 * @param string $userId
 	 * @return Entity|MatrixTicket
 	 * @throws \OCP\AppFramework\Db\MultipleObjectsReturnedException
 	 * @throws DoesNotExistException
 	 */
-	public function find(int $id, MatrixUser $matrixUser): MatrixTicket
+	public function findTicket(int $id): MatrixTicket
 	{
 		/* @var $qb IQueryBuilder */
 		$qb = $this->db->getQueryBuilder();
 		$qb->select('*')
 			->from('upschooling_tickets')
-			->where($qb->expr()->eq('id', $qb->createNamedParameter($id, IQueryBuilder::PARAM_INT)))
-			->andWhere($qb->expr()->in($matrixUser->getMatrixUser(), ['matrix_assisted_user', 'matrix_helper_user']));
+			->where($qb->expr()->eq('id', $qb->createNamedParameter($id, IQueryBuilder::PARAM_INT)));
+		return $this->findEntity($qb);
+	}
+
+	/**
+	 * @param int $id
+	 * @param string $userId
+	 * @return Entity|MatrixTicket
+	 * @throws \OCP\AppFramework\Db\MultipleObjectsReturnedException
+	 * @throws DoesNotExistException
+	 */
+	public function findForUser(int $id, MatrixUser $matrixUser): MatrixTicket
+	{
+		/* @var $qb IQueryBuilder */
+		$qb = $this->db->getQueryBuilder();
+		$qb->select('*')
+			->from('upschooling_tickets')
+			->where(
+				$qb->expr()->eq('id', $qb->createNamedParameter($id, IQueryBuilder::PARAM_INT)),
+				$qb->expr()->orX(
+					$qb->expr()->eq('matrix_assisted_user', $qb->createNamedParameter($matrixUser->getMatrixUser(), IQueryBuilder::PARAM_STR)),
+					$qb->expr()->eq('matrix_helper_user', $qb->createNamedParameter($matrixUser->getMatrixUser(), IQueryBuilder::PARAM_STR))
+				)
+			);
 		return $this->findEntity($qb);
 	}
 
@@ -37,13 +58,18 @@ class TicketMapper extends QBMapper
 	 * @param string $userId
 	 * @return array
 	 */
-	public function findAll(MatrixUser $matrixUser): array
+	public function findAllForUser(MatrixUser $matrixUser): array
 	{
 		/* @var $qb IQueryBuilder */
 		$qb = $this->db->getQueryBuilder();
 		$qb->select('*')
 			->from('upschooling_tickets')
-			->where($qb->expr()->in($matrixUser->getMatrixUser(), ['matrix_assisted_user', 'matrix_helper_user']));
+			->where(
+				$qb->expr()->orX(
+					$qb->expr()->eq('matrix_assisted_user', $qb->createNamedParameter($matrixUser->getMatrixUser(), IQueryBuilder::PARAM_STR)),
+					$qb->expr()->eq('matrix_helper_user', $qb->createNamedParameter($matrixUser->getMatrixUser(), IQueryBuilder::PARAM_STR))
+				)
+			);
 		return $this->findEntities($qb);
 	}
 }
diff --git a/lib/Exceptions/TicketNotFoundException.php b/lib/Exceptions/TicketNotFoundException.php
new file mode 100644
index 0000000..22bfe1d
--- /dev/null
+++ b/lib/Exceptions/TicketNotFoundException.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace OCA\UPschooling\Exceptions;
+
+use OC\OCS\Exception;
+use OC\OCS\Result;
+
+class TicketNotFoundException extends Exception
+{
+	public function __construct($ticketId)
+	{
+		parent::__construct(new Result(null, 404, 'Ticket with id ' . $ticketId . ' not found'));
+	}
+}
diff --git a/lib/Service/TicketService.php b/lib/Service/TicketService.php
index 55d3787..c241084 100644
--- a/lib/Service/TicketService.php
+++ b/lib/Service/TicketService.php
@@ -11,11 +11,16 @@ use OCA\UPschooling\Db\MatrixUser;
 use OCA\UPschooling\Db\TicketMapper;
 use OCA\UPschooling\Db\UserMapper;
 use OCA\UPschooling\Exceptions\RoomNotFoundException;
+use OCA\UPschooling\Exceptions\TicketNotFoundException;
 use OCP\AppFramework\Db\DoesNotExistException;
 use OCP\AppFramework\Db\MultipleObjectsReturnedException;
+use OCP\IUserManager;
 
 class TicketService {
 
+	/** @var IUserManager $userManager */
+	private $userManager;
+
 	/** @var MatrixService */
 	private $matrix;
 
@@ -25,19 +30,37 @@ class TicketService {
 	/** @var UserMapper */
 	private $userMapper;
 
-	public function __construct(MatrixService $matrix, TicketMapper $ticketMapper, UserMapper $userMapper) {
+	public function __construct(
+		IUserManager $userManager,
+		MatrixService $matrix,
+		TicketMapper $ticketMapper,
+		UserMapper $userMapper
+	) {
+		$this->userManager = $userManager;
 		$this->matrix = $matrix;
 		$this->ticketMapper = $ticketMapper;
 		$this->userMapper = $userMapper;
 	}
 
 	public function findAll(string $userId): array {
-		$dbTickets = $this->ticketMapper->findAll($this->getOrCreateUser($userId));
+		$dbTickets = $this->ticketMapper->findAllForUser($this->getOrCreateUser($userId));
 		return array_map(function ($ticket) { return $this->resolveTicket($ticket); }, $dbTickets);
 	}
 
+	/**
+	 * @throws MatrixRequestException
+	 * @throws MatrixHttpLibException
+	 * @throws MultipleObjectsReturnedException
+	 * @throws \OCP\DB\Exception
+	 * @throws TicketNotFoundException
+	 * @throws MatrixException
+	 */
 	public function find($id, $userId): array {
-		return $this->resolveTicket($this->ticketMapper->find($id, $this->getOrCreateUser($userId)));
+		try {
+			return $this->resolveTicket($this->ticketMapper->findForUser($id, $this->getOrCreateUser($userId)));
+		} catch (DoesNotExistException $e) {
+			throw new TicketNotFoundException($id);
+		}
 	}
 
 	public function create($title, $content, $userId): array {
@@ -59,6 +82,19 @@ class TicketService {
 		return $this->resolveTicket($this->ticketMapper->insert($ticket));
 	}
 
+	public function assign($id, $userId): array{
+		$matrixUser = $this->getOrCreateUser($userId);
+		$ticket = $this->ticketMapper->findTicket($id);
+		$roomID = $ticket->getMatrixRoom();
+		$helperName = $this->userManager->get($userId)->getDisplayName();
+		$this->matrix->setProperty($roomID, "upschooling.ticket", array(
+			"matrixHelperUser" => $matrixUser->getMatrixUser(),
+			"matrixHelperName" => $helperName,
+		));
+		$ticket->setMatrixHelperUser($matrixUser->getMatrixUser());
+		return $this->resolveTicket($this->ticketMapper->update($ticket));
+	}
+
 	public function update($id, $title, $content, $userId) {
 		throw new Exception("Not implemented");
 	}
@@ -68,6 +104,7 @@ class TicketService {
 	}
 
 	/**
+	 * matrixTicketContent has all the syncronized  data
 	 * @param MatrixTicket $ticket the database object.
 	 * @return array a JSON serializable representation of the resolved ticket, for the frontend.
 	 */
@@ -79,12 +116,17 @@ class TicketService {
 			$title = array_get($matrixTicketContent, "title", "Untitled");
 			$description = array_get($matrixTicketContent, "description", "");
 			$lastModified = $this->matrix->getLastEventDate($ticket->getMatrixRoom());
+			$matrixHelperUser = array_get($matrixTicketContent, "matrixHelperUser", "nicht zugewiesen");
+			$matrixHelperName = array_get($matrixTicketContent, "matrixHelperName", $matrixHelperUser);
+			$expirationDate = array_get($matrixTicketContent, "expirationDate", "");
 			return array(
 				'ticketId' => $ticketId,
 				'status' => $ticket->getStatus(),
 				'lastModified' => $lastModified,
 				'title' => $title,
 				'description' => $description,
+				'matrixHelperName' => $matrixHelperName,
+				'expirationDate' => $expirationDate
 			);
 		} catch (MatrixException | RoomNotFoundException $e) {
 			return array(
diff --git a/src/App.vue b/src/App.vue
index efff633..d93efd1 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -61,14 +61,16 @@ export default {
 					this.tickets.push(response.data)
 				}
 			}).catch(console.error)
-			axios.post(
-				'api/v1/tickets',
-				{ title: 'Zweites Ticket', content: 'Zweites Beispiel' },
+			axios.get(
+				'api/v1/tickets/1',
 				{ headers: { 'Content-Type': 'application/json', Accept: 'application/json' } },
+			).catch(console.error)
+			axios.put(
+				'api/v1/tickets/1',
+				{},
+				{ headers: { 'Content-Type': 'application/json', Accept: 'application/json' } }
 			).then((response) => {
-				if (this.ticketsFetched === false) {
-					this.tickets.push(response.data)
-				}
+				console.error('added a helper to ticket 2')
 			}).catch(console.error)
 		},
 		fetchTickets() {
diff --git a/tests/Unit/Controller/TicketApiControllerTest.php b/tests/Unit/Controller/TicketApiControllerTest.php
index d9e5a76..ad7beb6 100644
--- a/tests/Unit/Controller/TicketApiControllerTest.php
+++ b/tests/Unit/Controller/TicketApiControllerTest.php
@@ -35,7 +35,7 @@ class TicketApiControllerTest extends TestCase
 				$this->equalTo($this->userId))
 			->will($this->returnValue($note));
 
-		$result = $this->controller->update(3, 'title', 'content');
+		$result = $this->controller->update(3);
 
 		$this->assertEquals($note, $result->getData());
 	}
@@ -48,7 +48,7 @@ class TicketApiControllerTest extends TestCase
 			->method('update')
 			->will($this->throwException(new NoteNotFound()));
 
-		$result = $this->controller->update(3, 'title', 'content');
+		$result = $this->controller->update(3);
 
 		$this->assertEquals(Http::STATUS_NOT_FOUND, $result->getStatus());
 	}*/