generate response: Yes, can you book that for 2 people and give me a reference number?. Intent: book_train. Slots: train-bookpeople=2, train-day=wednesday, train-departure=london kings cross, train-destination=cambridge, train-leaveat=09:30
Response: Booking was successful, the total fee is 47.2 GBP payable at the station . Reference number is : 1W7IKOHU . Is there anything else you need?