generate response: I am looking to depart cambridge, head to ely, and arrive by 18:30. Intent: find_train. Slots: train-arriveby=18:30, train-day=friday, train-departure=cambridge, train-destination=ely
Response: Alright, there are seven trains that meet that requirement, starting at 5:50 and running once an hour every hour until 17:50. Would you like me to book any of these trips?