generate response: book for 2 people and get me the reference number. Intent: book_train. Slots: train-bookpeople=2, train-day=monday, train-departure=cambridge, train-destination=stansted airport, train-leaveat=08:15, 8:15
Response: Sure! The reference number for this booking is QA51IFDT and the total fee with be 20.2 GBP payable at the station. Can I assist you with anything else?