Can you help me find a restaurant that serves sri lankan food that is moderately priced?
I'm sorry, but there are no Sri Lankan restaurants anywhere in Cambridge. Would you like to try a different cuisine?
Are you sure? I really thought there were some there. 
Yes, I have doubled checked and there are no sri lankan restaurants anywhere in Cambridge.
Okay, how about one that serves British food?
There are 4 British restaurants in the centre area of town and one in the west. Which area would you prefer?
Could you recommend one? I will be needing a table for 1 at 14:30 on Thursday.
What price range would you like?
moderate price, please.
Booking was successful. The table will be reserved for 15 minutes.
Reference number is : 3NX7QMU8.
I also need to find a college in the town centre to visit. If you can provide me with the name and post code, that would be great.
Sorry, I forgot to say that your booking is at Restaurant One Seven. Emmanuel College is in post code cb23ap. Would you like to hear about some of the others, too?
Yes, please let me know about some of the others. 
There's Christ College postcode cb23bu, Corpus Christi postcode cb21rh, and downing college at postcode cb21dq. Is there anything else I can help you with? 
You have covered everything.  Thank you.
Have a great day and trip! Good bye.