public async Task <IHttpActionResult> Post3Async(Reservation reservation)
        {
            try
            {
                var qrCodeManager      = new QRCodeManagement();
                var userManager        = new UserManagement();
                var reservationManager = new ReservationManagement();

                // State is user email
                var user = new User()
                {
                    Correo = reservation.State
                };
                var userFound             = userManager.RetrieveByCorreo(user);
                var subReservationCreated = reservationManager.CreateSubreservation(reservation, userFound);

                // Build QR Code
                QRCode code = new QRCode()
                {
                    Id                = userFound.Id,
                    Value             = "none",
                    State             = "none",
                    FK_SubReservation = subReservationCreated.FkSubreservation
                };
                QRCode qrcode = qrCodeManager.Create(code, "INVITADO_ENA");

                // Send Email
                await qrCodeManager.SendEmail(user, qrcode.Value);

                apiResponse = new ApiResponse();
                return(Ok(apiResponse));
            }
            catch (BussinessException bex)
            {
                return(InternalServerError(new Exception(bex.AppMessage.Message)));
            }
        }