/**
  * Displays the Tickets by the given User id
  *
  * @param $id
  * @return View
  */
 public function tickets_by_user($id)
 {
     $tickets = $this->ticket->whereUserId($id)->orderBy('id', 'asc')->paginate(10);
     $header = 'Tickets by ' . User::findOrFail($id)->name;
     return view('tickets.index', compact('tickets', 'header'));
 }