public async Task <ActionResult> Create([Bind(Include = "Id_Tour,DepartureDate,ReturnDate,Route")] Tour tour)
        {
            if (ModelState.IsValid)
            {
                db.Tour.Add(tour);
                await db.SaveChangesAsync();

                return(RedirectToAction("Index"));
            }

            return(View(tour));
        }
        public async Task <ActionResult> Create([Bind(Include = "Id_Passenger,LastName,Name,Age,Id_Tour")] Passenger passenger)
        {
            if (ModelState.IsValid)
            {
                db.Passenger.Add(passenger);
                await db.SaveChangesAsync();

                return(RedirectToAction("Index"));
            }

            ViewBag.Id_Tour = new SelectList(db.Tour, "Id_Tour", "Route", passenger.Id_Tour);
            return(View(passenger));
        }