generate response: Friday, and after 20:00.. Intent: find_train. Slots: hotel-area=south, hotel-bookday=friday, hotel-bookpeople=4, hotel-bookstay=3, hotel-name=aylesbray lodge guest house, hotel-type=guesthouse, train-arriveby=20:00, train-day=friday, train-departure=stevenage, train-destination=cambridge
Response: TTR7278 leaves at 17:54 and arrives at 18:43, cost is 12.80 pounds per person, would you like me to book you?