generate response: Yes, I'll be going to Cambridge, and I need to arrive by 13:15.. Intent: find_train. Slots: train-arriveby=13:15, train-day=friday, train-departure=london kings cross, train-destination=cambridge
Response: There are 4 different trains departing at 5:17, 7:17, 9:17, and 11:17. Each of those trains will arrive before 13:15. Would you like to book a train?