public ActionResult Create(HotelReservationViewModel hotelReservationViewModel)
        {
            if (ModelState.IsValid)
            {
                try
                {
                    HotelReservationDTO newReservation = new HotelReservationDTO()
                    {
                        ClientName      = User.Identity.Name,
                        StartDate       = hotelReservationViewModel.StartDate,
                        EndDate         = hotelReservationViewModel.EndDate,
                        Hotel           = hotelService.FindById(hotelReservationViewModel.HotelId),
                        NumberOfPersons = hotelReservationViewModel.NumberOfPersons
                    };

                    hotelReservationService.Reserve(newReservation);
                    return(RedirectToAction("Index", "Hotel"));
                }
                catch (Exception e)
                {
                    ModelState.AddModelError("", e.Message);
                }
            }
            return(View(hotelReservationViewModel));
        }