generate response: I'll be travelling on wednesday, and would like to arrive by 19:45.. Intent: find_train. Slots: train-arriveby=19:45, train-day=wednesday, train-departure=ely, train-destination=cambridge
Response: TR8610 arrives leaves ely at 17:35 and arrives at 17:52. The cost is 4.40 pounds. Would you like me to book it for you?