I need to narrow down the search for you. Where are you heading?
Hi there, I'm looking for a train going to cambridge. As I said, I am heading to Cambridge.
{"__type": "Request", "service": "train", "values": ["destination"]}
{"__type": "Request", "service": "train", "values": ["arrive by", "departure", "leave at"]}
I'm sorry, to help narrow down the results please reply with where you will be departing from and your requested arrival/departure time.