generate response: Yes, please book it for 6 people, and I need a reference number.. Intent: book_train. Slots: train-bookpeople=6, train-day=saturday, train-departure=cambridge, train-destination=bishops stortford, train-leaveat=20:15
Response: Okay, I've booked 6 train tickets for you. Your reference number is NW67NGNA . Is there anything else I can help you with?