I am looking for moderately priced lodging with free wifi.
There are 17 hotels that match that criteria.  Would you like to narrow it down some? Do you need free parking?  What area would you like?
I would like it to have a four star rating. 
There are 11 entries. Does type matter to you?
It does not.  Do you have a favorite?
I particularly like the acorn guest house in the north. It meets your criteria plus offers parking, just in case you might need it. Would you like a booking? 
I don't need a booking but can you tell me the postcode and address?
Yes of course, their postcode is cb41da, and their address is 154 Chesterton road. Is there anything else that I can do for you today?
No, that is all the information I needed.  Thank you!
Thanks for using the Cambridge TownInfo Centre. Goodbye!