generate response: I'll need to arrive by 15:00. Intent: find_train. Slots: train-arriveby=15:00, train-day=thursday, train-departure=ely, train-destination=cambridge
Response: Okay, that narrows it down to 5 trains. TR4992 arrives closest to 15:00. It will get you to Cambridge at 13:52. Would you like me to book a seat?