public void CancelReservation(int reservationId, string user)
        {
            using (var dbContext = new FlexSeatingContext())
            {
                var res = dbContext.Reservations.Where(x => x.Id == reservationId).FirstOrDefault();
                if (res != null && user == res.UserId)
                {
                    dbContext.Reservations.Remove(res);
                }

                dbContext.SaveChanges();
            }
        }
 public void ReserveDesk(int deskId, string user, DateTime date)
 {
     using (var dbContext = new FlexSeatingContext())
     {
         var num = dbContext.Reservations.Where(x => (x.Date == date && x.UserId == user)).Count();
         if (num == 0)
         {
             var res = new Reservations()
             {
                 DeskId = deskId,
                 UserId = user,
                 Date   = date
             };
             dbContext.Reservations.Add(res);
             dbContext.SaveChanges();
         }
     }
 }