generate response: Yes please. I need 5 tickets.. Intent: book_train. Slots: train-bookpeople=5, train-day=monday, train-departure=cambridge, train-destination=broxbourne, train-leaveat=21:45
Response: You're booked on TR9611, leaving at 22:01. The total fee is 89.5 GBP payable at the station. Reference number is : 18PWJ7X3 .