generate response: Yes, that would work well. Can you book it for 5 people and give me the reference number, please?. Intent: book_train. Slots: train-bookpeople=5, train-day=wednesday, train-departure=cambridge, train-destination=london liverpool street, train-leaveat=17:00
Response: Sure, it is all set. The reference number is HEDQCGXW and the total fee is 83 GBP payable at the station.