generate response: What is the postcode for Old Schools? Also I need a train that leaves after 13:45 on Friday. Can you tell me what is available?. Intent: find_train. Slots: attraction-area=centre, attraction-name=old schools, attraction-type=architecture, train-day=friday, train-leaveat=13:45
Response: cb21tt is the postcode for Old Schools. What is the area that you would like to depart from for the travel arrangements?