generate response: Excellent. Please make a booking for six people, then give me the reference number.. Intent: book_train. Slots: train-bookpeople=6, train-day=tuesday, train-departure=bishops stortford, train-destination=cambridge, train-leaveat=08:30, after 08:15
Response: Booked! the total fee is 60.59 GBP payable at the station. Reference number: PUGHYJ72 .