$end = $_POST['end'];
         $requestType = $_POST['requestType'];
     } else {
         $action = "";
     }
     try {
         $params = array('requestingUser' => $requestingUser, 'userName' => $username, 'start' => $start, 'end' => $end);
         $client = new SoapClient($wsdl, array('location' => $location));
         if ($requestType == "User") {
             $result = $client->getUserAppointments($params);
         } else {
             if ($requestType == "Mentor") {
                 $result = $client->getMentorAppointments($params);
             } else {
                 if ($requestType == "Host") {
                     $result = $client->getHostAppointments($params);
                 }
             }
         }
         echo json_encode($result->appointments);
     } catch (Exception $e) {
         echo $e->getMessage();
     } catch (SoapFault $soapfault) {
         echo $soapfault->getMessage();
     }
 } else {
     if ($action == 'scheduleAppointments') {
         header('Content-Type: text/x-json');
         if (isset($_POST['requestingUser'])) {
             $id = $_POST['id'];
             $requestingUser = $_POST['requestingUser'];