generate response: That would be great. What is the total travel time of the train ride?. Intent: find_train. Slots: hotel-stars=4, hotel-type=guesthouse, train-arriveby=20:30, train-day=monday, train-departure=cambridge, train-destination=stansted airport
Response: This trip is about 28 minutes. Now we can get to finding you a guesthouse. What area would you like me to look for?