generate response: Yes I would like you to book that for 4 people. May I have the reference number please?. Intent: book_train. Slots: train-bookpeople=4, train-day=sunday, train-departure=peterborough, train-destination=cambridge, train-leaveat=16:45
Response: Yes, the Booking was successful, the total fee is 52.8 GBP payable at the station .Reference number is : G3XQ3F49 .