I want to try some local restaurants. What are your recommendations? 
What type of food are you interested in?
I actually need a train frist. It needs to arrive by 13:00 and depart from cambridge and arrive at london kings cross Wednesday. 
I will have to tranfer you to the person that does trains since I do restaurants. Let me know if you want to discuss food still.
I will also need the departure time and travel time.
train TR3844 departs at 11:21 and the travel time is 49 minutes. would you like me to book you a ticket?
No thanks, but I would like to see if there are any Persian restaurants in the south area of town.
No. Would you like me to try another type of food. 
Do you have anything expensive?
there are five expensive restaurant in the south.
I need one close to centre of town
I have so many options including Africa, British and Asian. Do you have a preference?
Yes, I would prefer the British.
I recommend the fitzbillies restaurant. it's on 51 Trumpington Street City Centre. Would you like me to book a table?
No thanks, but could you give me the zipcode for the restaurant?
The zip code for the restaurant is cb21rg. Is there any thing else I can do for you today? 
no. i am taken care of. thanks. bye. 
Enjoy your day, goodbye!