generate response: I need to depart on Friday.. Intent: find_train. Slots: restaurant-area=centre, restaurant-bookday=friday, restaurant-bookpeople=5, restaurant-booktime=16:30, restaurant-food=indian, restaurant-name=curry garden, curry, restaurant-pricerange=expensive, train-arriveby=12:30, train-day=friday, train-departure=london liverpool street, train-destination=cambridge
Response: I have several options. Is there a certain time you need to leave by?