generate response: That would be perfect. Can you book that for 5 people and give me a reference number?. Intent: book_train. Slots: train-bookpeople=5, train-day=friday, train-departure=norwich, train-destination=cambridge, train-leaveat=08:15
Response: Ok, I've booked 5 people on TR 3293. Your reference number is BBG39TVV and your total due is 88 GBP payable at the station. Anything else I can do?