generate response: Yes, can you book me a ticket for 3 people?. Intent: book_train. Slots: train-bookpeople=3, train-day=saturday, train-departure=cambridge, train-destination=leicester, train-leaveat=21:15
Response: Booking was successful, the total fee is 90.72 GBP payable at the station. Your reference number is DKV6X3Z3