generate response: I will be departing from london liverpool street and need to go to cambridge. I need to leave after 20:30.. Intent: find_train. Slots: train-day=friday, train-departure=london liverpool street, train-destination=cambridge, train-leaveat=20:30
Response: TR8373 leaves at 21:39 on Friday. The price is 16.60 pounds. Will that work for you?