generate response: As long as I leave by 19:15 it will be fine. There are 4 of us.. Intent: book_train. Slots: train-bookpeople=4, train-day=wednesday, train-departure=peterborough, train-destination=cambridge, train-leaveat=19:15
Response: Okay, booking was successful, the total fee is 66 GBP payable at the station. Your reference number is : MCCA0VK8 .