generate response: Can you tell me how much the ticket is?. Intent: book_train. Slots: train-arriveby=09:30, 9:30, train-bookpeople=2, train-day=thursday, train-departure=london liverpool street, train-destination=cambridge
Response: Yes, there are 3 that cost 16.60 pounds. You could leave at 5:39 if you'd like. Can I book that for you?