hi I want a train to Ely arrived by 13:45, can you help me do that?
What time do you want to depart?
Any time is fine as long as it's on Saturday.
There is only one train that would meet your criteria closely and it leaves at 11:50 and arrives  in Ely at 12:07. may I book that for you?
Yes, please. I will need 8 tickets, and please give me the reference number once you book.
First, may I confirm that your departure site is Cambridge?
That is correct.
I have successfully booked you 8 tickets. Your reference number is 0YY5WZQ6. Is there anything else you need?
I also need a Thai restaurant in the moderate price range.
I'm sorry, but there are no restaurants that meet your criteria. Would you like to broaden your search?
What about a restaurant that serves european food? I'd like the phone no. and postcode to that, please.
There are 5 places that serve European. Did you prefer modern European, or just European food in general?
Just european food in general, please.
How about the Galleria? Their phone number is 01223362054 and the address is 33 Bridge Street, the postcode is cb21uw 
Sounds lovely. Thank you so much for all of your help!
Thank you for using this system.