I am looking for a cheap restaurant that serves Cuban food. 
I am sorry there are no Cuban restaurants in the cheap price range. Is there anywhere else you will like to search for?
Could you look for Chinese restaurants instead?
There are 3 in the centre and one in the south. Charlie Chan is one of the cheap Chinese restaurants in the centre.
Can I get the address and phone number of Charlie Chan, please?
Charlie Chan's phone number is 01223 361763 and the address is Regent Street City Centre. May I help you with anything else?
Thank you, that is all I need.  Goodbye!
Thank you, goodbye!