/**
  * checkout reservation information
  * @param Request $request
  */
 public function checkout(Request $request)
 {
     $id = $request->input('id');
     $rsb = ROOM_RESERVATION_BLOCK::where("room_reservation_id", $id);
     foreach ($rsb as $r) {
         $room = ROOM::find($r->room_id);
         $room->status = 'AVAILABLE';
         $room->save();
     }
     $rs = ROOM_RESERVATION::find($id);
     $rs->status = "CHECKED OUT";
     $rs->save();
 }