U: I would like a train that is going by cambridge.

S: Where would you be departing from?

U: Kings lynn on thursday.

S: There are several trains leaving throughout the day. What is your departure time?

U: The train should arrive by 15:45 and should go to cambridge,can you book it for me ?

S: Let me get a bit more information from you.  We trains leaving every hour from 05:11 to 14:11, would you like a morning or afternoon departure?

U: I don't have a preference as long as I arrive at 15:45.

S: I have train TR2162 arriving at 14:58 can I book you seat/s for that one?

U: I don't need a ticket right now, but can you give me the departure time and total travel time, please?

S: It leaves at 14:11 and lasts 47 minutes. Is there anything else?

U: Yes. I am looking for a restaurant that serves North American food. Preferably in the expensive price range.

S: The Gourmet Burger Kitchen serves North American cuisine. Would you like more info on this website? Or would you like me to book it for you?

U: Do they have good service there?
S: Some have described the service as great but most have described it as mediocre.  Would you like to book a table or keep searching?