generate response: Yes please, book it for two people and provide me with the reference number if you don't mind.. Intent: book_train. Slots: train-bookpeople=2, train-day=saturday, train-departure=cambridge, train-destination=birmingham new street, train-leaveat=15:30
Response: Ok, I have booked travel for two people on TR 3245 leaving Cambridge at 1601. Reference number XI0220XD for your records.