I am  looking for information in Cambridge.  looking for a restaurant. 
Sure, what kind of restaurant?
It doesn't matter but it should be expensive and it should be in the centre. 
Do you have any cuisine preferences? 
Yes, we would like American type food.
We actually have different categories of american food -- latin american, modern american, north american, and "the americas." Which of these would you prefer?
How about latin america?
I'm sorry. I have no results that meet your criteria. Would you like to try a different food type, price range, or area?
How about North American cuisine instead?  
Gourmet Burger Kitchen is expensive and in the center.  Would you like to book a table?
Yes please, for Thursday, 7 people at 16:45. I also need a reference number.
Booking was successful. The table will be reserved for 15 minutes. Reference number is : 2FX5XCUM. is there anything else i could help you with?
I also need a train. Going to Ely Friday. 
Okay and what time would you like to arrive?
I'd like to depart Cambridge after 21:30.
The train TR9842 is leaving Cambridge on Friday at 21:50.  The cost is only 4.40 pounds and the travel time is 17 minutes.  Would you like me to book?
Yes please book that for me.
Booking was successful, the total fee is 4.4 GBP payable at the station .Reference number is : ZC86HRQ4. is there anthing else i can do?
That is all I will need. Thank you. 
excellent, have a great day!