generate response: I will travel to cambridge from stansted airport on wednesday and need to arrive by 14:15. Intent: find_train. Slots: hotel-bookday=wednesday, hotel-bookpeople=3, hotel-bookstay=5, hotel-name=cityroomz, train-arriveby=14:15, train-day=wednesday, train-departure=stansted airport, train-destination=cambridge
Response: There are 9 trains available. Do you need tickets booked?