generate response: I would like to leave from Cambridge and with my destination being London Liverpool Street. Thank you for your help with this.. Intent: find_train. Slots: train-arriveby=21:15, train-day=friday, train-departure=cambridge, train-destination=london liverpool street
Response: TR5212 will arrive at London Liverpool Street at 19:27. It leaves Cambridge at 17:59, and the travel time is 88 minutes. Would you like a ticket?