generate response: No thank you. I will just need the train ID and travel time of the first one leaving after 13:15 going to the airport.. Intent: find_train. Slots: train-day=monday, train-departure=cambridge, train-destination=stansted airport, train-leaveat=13:15
Response: TR3769 departs at 13:40 with a total travel time of 28 minutes. Do you need further assistance with anything else?