I am looking for information in Cambridge.
What type of information are you looking for? I can helpp with dining, hotels and entertainment.
I need a train on friday going to ely from cambridge arrival by 13:00
I have 4 trains that meet your needs. Would you like to book tickets?  
book for 2 people and get me the reference number
Booking was successful, the total fee is 8.8 GBP payable at the station .
Reference number is : 8BUQLIK8.
Great! I also need to have some north american food in the west part of town.
I'm sorry, we don't have any north american restaurants in the west area. Would you like to try a different type of food?
Could you look again for places that serve North American food in the West.  
The only north american restaurant in the city is in the centre. Would you like more information about that?
How about an intalian restaurnat in the west area?
I have two.  One is moderately priced, and one is cheap.  Do you have a preference?
The moderately priced one will be fine. I'll need it booked for the same day, same people, and at 10:15. 
You are booked the reference number is 3ICEL34F, can I help with anything else?
Great that was all I needed today, thank you
You're very welcome!  Have a great day.