I am going to visit and would like to go to a nightclub. Any suggestions?
There are 6 nightclubs located in Cambridge. 5 in the Centre and 1 in the South; do you have a preference?
No preference, surprise me. I'll just need the postcode.
The Soul Tree Nightclub I have heard is the best. Their postcode is cb23qf. Anything else you need?
Yes I need to find a hotel with free parking and 4 star rating.
There are 19 hotels available with a 4 star rating and free parking. Would you like to add any additional preferences? 
Yes, I'd prefer a hotel over a guesthouse and I need to stay in the north.
I'm afraid no hotel in the north matches your inquiry, perhaps a different star rating?
If there is no hotel availability, I will accept a guesthouse.  Is one available?
Yes, there are 7 guesthouses in the north that meet your needs. 6 are moderate and 1 is cheap. Would you like more information?
Do any of the guesthouses have access to internet for their guests?
yeah all of them do, any other preference?
How about free parking?
They all also offer free parking. Would you like to book a room?
Could I get the phone number and address of one of them?  Also can you find me a nightclub nearby and give me their postcode?
The Acorn Guest House is at 154 chesterton road, and its phone number is 01223353888. There are no nightclubs in the north part of town.
Okay. Thank you very much for your help. 
Can I help you with anything else today?
I think that takes care of everything.
Okay, I am glad I could help. Have a wonderful day.