public CartDto AddTicket(SelectedSeatsDto seats)
{
// check if this is the first time the car is initiated
if (UserCart.UserId == null && UserCart.Orders == null)
{
UserCart.UserId = User.Identity.GetUserId();
UserCart.Orders = new Collection <OrderDto>();
}
UserCart = _busService.AddToCart(UserCart, seats);
return(UserCart);
}