ParkAroundBotProcessFinished.cs

        private async Task ProcessFinished(IDialogContext ctx, IAwaitable<bool> confirmation)
        {
            bool userConfirmed = await confirmation;
            if (userConfirmed == false)
            {
                ctx.Done("finished");
                return;
            }

            result = await
               ReserveTravelUtility.ReserveTravelAsync(selectedEmail, selectedName, selectedLicensePlate,
               selectedParkingLocationDetails.Name, selectedParkingLot.parkingLotID, arrivalDateTime, departureDateTime,
               selectedParkingLot.Price, selectedParkingLot.PricelistId);

            if (result.Success)
            {
                var response = result.Result;
                var imessageactivity = ctx.MakeMessage();
                var messageactivity = imessageactivity as Activity;
                var replyToConversation = messageactivity;
                replyToConversation.Type = "message";
                replyToConversation.Recipient = messageactivity.From;

                List<CardImage> cardImages = new List<CardImage>();
                cardImages.Add(new CardImage(url: selectedParkingLot.Image));

                ReceiptItem lineItem = new ReceiptItem()
                {
                    Title = result.Result.Booking.ParkingLotOperator,
                    Subtitle = result.Result.Booking.ParkingLotAddress,
                    Text = result.Result.Booking.Email,
                    Image = new CardImage(url: selectedParkingLot.Image),
                    Price = result.Result.Booking.PriceNumber.ToString(),
                    Quantity = "1",
                    Tap = null
                };

                List<ReceiptItem> receiptList = new List<ReceiptItem>();
                receiptList.Add(lineItem);

                //https://developers.facebook.com/docs/messenger-platform/send-api-reference/receipt-template
                ReceiptCard plCard = new ReceiptCard()
                {
                    Title = "I'm a receipt card",
                    Items = receiptList,
                    Total = result.Result.Booking.PriceNumber.ToString(),
                    Tax = "0", 
                    Facts = new List<Fact>(){
                         new Fact("payment_method","Cash"),
                         new Fact("currency","EUR"),
                         new Fact("total_tax","01"),
                         new Fact("address:street_1", selectedEmail),
                         new Fact("order_number",result.Result.Booking.Code.ToString()),
                         new Fact("currency","EUR"),
                         new Fact("order_url",result.Message ?? "http://www.parkaround.gr/")},
                };
                var msg=ctx.MakeMessage();
                Attachment plAttachment = plCard.ToAttachment();
                replyToConversation.Attachments = new List<Attachment>();
                replyToConversation.Attachments.Add(plAttachment);
                replyToConversation.Recipient.Name = msg.Recipient.Name;
                await ctx.PostAsync(StringMessages.ConfirmedReservation);
                await ctx.PostAsync(replyToConversation);
            }
            else
            {
                await ctx.PostAsync(result.Message);
            }
            ctx.Done("Finished");
        }