Find me a moderately priced place to dine in the west. 
I have 3 options for you - British, Indian, and Italian. Do you have a preference?
How about the British place, I would like to book for 7 people at 13:15 on sunday
Ok.  I have a table for 7 booked at saint johns chop house. Your reference number is XPKRJXC3.  They will hold the table for 15 minutes.
Excellent, thank you so much.
Is there anythign else I can help you with today?
I also need a train to cambridge on sunday
You have a lot of options. Would you like to narrow it down by departure site, departure time, or arrival time?
actually, i'm so stupid. i need a train FROM cambridge. i'm going to broxbourne.
No problem, there are lots of options.  Did you have a time to leave in mind? 
I am leaving anytime after 11:30 from cambridge to broxbourne, what is the arrival time?
TR2939 would have an arrival time of 13:01. Would you like to book this train?
No thanks, I just wanted to know the arrival time. 
Is there anything else?
No, You have helped with everything I needed.  Thanks so much for your time.  Bye.
Have a great trip.