generate response: i also need help finding a train. i want to go to london liverpool street and get their by 17:45.. Intent: find_train. Slots: restaurant-area=centre, restaurant-bookday=saturday, restaurant-bookpeople=4, restaurant-booktime=16:15, restaurant-food=chinese, restaurant-name=hk fusion, restaurant-pricerange=expensive, train-arriveby=17:45, train-destination=london liverpool street
Response: What day will you be traveling?