U: am looking for a train. The train should depart from peterborough and should go to cambridge.

S: I'm sorry, I'm experiencing an error in my system. Could you please restate your request?

U: I am looking for a cheap restaurant on the north side of town.

S: There are two options for you. Royal spice and da vinci pizzeria. Do you have a preference?

U: Which of the two options has a good selection of non-alcoholic drinks?
S: Those who have previously dined at the Royal Spice regard the selection of non-alcoholic drinks to be great.