/**
  * @param Ticket $ticket
  * @param $command
  */
 protected function updateTicketStatus(Ticket $ticket, $command)
 {
     $status = new Status($command->ticketStatus);
     if (false === $ticket->getStatus()->equals($status)) {
         $ticket->updateStatus($status);
         $this->registry->getManager()->persist($ticket);
     }
 }