generate response: Yes. I need to book a reservation for 8 people, and will need the reference number. Intent: book_train. Slots: train-arriveby=09:45, train-bookpeople=8, train-day=friday, train-departure=cambridge, train-destination=bishops stortford
Response: Okay, there are two different trains. The first leaves at 05:29 and the second leaves at 07:29.