generate response: It certainly does. Can you book for 3 people, please?. Intent: book_train. Slots: train-bookpeople=3, train-day=saturday, train-departure=cambridge, train-destination=kings lynn, train-leaveat=21:45
Response: Booked! Reference number: FKH54ZP9 . The fee is 23.52 GBP payable at the station.