public ReturnReceipt MakeRentalReturn(string rentalNumber, double currentMilage, DateTime returnDateTime, IRentalService rentalService)
        {
            var returnRequest = new ReturnRequest()
            {
                CurrentMilageKm = currentMilage,
                RentalNumber = rentalNumber,
                ReturnDateTime = returnDateTime,
            };

            var returnReceipt = rentalService.ReturnVehicle(returnRequest);

            return returnReceipt;
        }