Domains: train

user: Yes, I would like a taxi to the Town Centre. From the train station.

assistant: Where from the town centre do you need the taxi to pick you up?

user: I'm sorry, did I say Taxi? I mean train.

assistant: Let's start over. Are you looking for a train?

user: Yes. I need it to depart from Cambridge.

assistant: Where would you like the train from cambridge to travel to?