Hello, any interesting colleges in town?
I am showing 18 colleges. Is there a certain area of town you would like?
Not really.  Which do you think would be the most interesting to visit?
I would suggest Christ's college in the city centre or Corpus Christi college in the west.  Christ's college is free and Corpus Christi costs 2 pounds? Which do you want?
What is the postcode of Corpus Christi?
Their postcode is cb21rh. Can I assist you with anything else?
I am looking for a guesthouse to stay in.
I have 24 guesthouses.  Let's narrow it down a bit.  Do you have a price range?
I need something with free parking and a 4 star rating. 
That cuts it down to 16. I can recommend the Acorn guest house, or do you have a pricerange or area of town you want to stay in?
Pick any of them, please. Book it for 6 people and 3 nights, starting thursday. 
Booking was successful.
Reference number is : 2WPLODLS.  is there anything else i can help you with?