public List <PaidReservation> GetPaidReservationList()
        {
            List <PaidReservation> retList = new List <PaidReservation>();

            for (int i = 0; i < PaidReservationRepository.getInstance().Count(); i++)
            {
                PaidReservation refPaidReservation = PaidReservationRepository.getInstance().getPaidReservationByIndex(i);
                retList.Add(refPaidReservation);
            }

            return(retList);
        }
        public void AddNewPaidReservation(Reservation inRes, Bill inBill)
        {
            PaidReservationRepository.getInstance().addPaidReservation(new PaidReservation(inRes.Code, inRes.TicketAmount, inRes.ResTime, inRes.ResEvent, inRes.CustomerName, inRes.CustomerSurname, inRes.CustomerPhone, inBill));

            List <PaidReservation> list = GetPaidReservationList();
        }