I am looking for a place to dine that serves sri lankan food in the centre. 
There are not any restaurants serving Sri Lankan food in the centre of town. Should I check another type of food?
Yes, are there any options for Italian food in the centre?
There are 9 Italian restaurants in the center. Do you have a preferred price range?
I'd like the address, phone number and postcode for one of the cheap restaurants, please.
Pizza Hut City Centre is located at Regent Street City Centre, cb21ab. The phone number is 01223323737. Could I be of further assistance?
I'm looking for entertainment spots to visit near the restaurant. What kinds of things are there to do?
I have a lot of attractions to choose from in the centre. Perhaps you would be interested in visiting a church?
I'm interested in entertainment activities. Are there any theaters in the area of the restaurant?
There are four theatres near the centre. They are: adc theatre, cambridge arts theatre, mumford theatre, and the cambridge corn exchange.
Can you tell me about colleges in the center of town?
There are 13 colleges in the centre of town. Some of them have free entrance and some of them charge a fee. 
Give me your recommendation for a college with a free entrance fee. Please include a phone number too.
I've heard great things about Hughes Hall.  Their entrance fee is free.  Would you like more information about them?
Can I get their phone number please
Hughes hall's phone number is 01223334898. Is there anything else you need?
Is there an entrance fee?
No. It is free to tour Hughes Hall.
Okay thank you for your help.
You are welcome! Is there anything else I can assist you with? 
No, that's all I need. Thanks for your help. 
Thank you. Have a great day, goodbye.