generate response: I'll be going to stansted airport from cambridge, and I need to arrive by 8:00.. Intent: find_train. Slots: train-arriveby=08:00, 8:00, train-day=friday, train-departure=cambridge, train-destination=stansted airport
Response: I found two trains that will do that, one will leave at 5:40, and one will leave at 6:40, which would you like to book?