generate response: I'm actually looking for one on Friday. Are there any that will arrive by 18:00 at Liverpool on Friday?. Intent: find_train. Slots: train-arriveby=18:00, train-day=friday, train-departure=cambridge, train-destination=london liverpool street
Response: There is train leaving for Liverpool Street at 5:59 on Friday arriving at 7:27. Would you like to book a seat?