generate response: That sounds great. Can you please book it for four people?. Intent: book_train. Slots: train-bookpeople=4, train-day=tuesday, train-departure=ely, train-destination=cambridge, train-leaveat=09:45
Response: Booking was successful, the total fee is 17.6 GBP payable at the station . Reference number is : 6VFKQ7J6 .