generate response: Yes please, just one ticket and I'll need the reference number.. Intent: book_train. Slots: train-bookpeople=1, train-day=sunday, train-departure=london liverpool street, train-destination=cambridge, train-leaveat=15:00
Response: Booking was successful, the total fee is 13.28 GBP payable at the station . Reference number is : GSIGVNEW .