Hi, I'm looking for a restaurant that serves Carribbean food. Do you have any like that?
No, would you like to try a different type of food?
How about indian food?
There are a few restaurants that serve Indian food. What area would you like, and price range?
I'd like an expensive place.
I recommend Tandoori Palace in the west. Would you like me to book a table for you?
What is the postcode for that place?
The postcode is cb43le. You need anything else?
Yes i need a train going to stansted airport on friday.
When would you like to leave?
It should leave after 12:30 on friday. 
Do you have a certain time you need to arrive by?
Does not matter when I arrive, whatever is closest to leaving at 12:30 but after, can you please book me for 7 and give me a reference number?
I have you booked on TR0188, leaving Cambridge at 12:40. The total fee is 70.7 GBP payable at the station. Reference number is BFK34XQC.
Thank you. That's all I need. Bye. 
thanks for inquiring with us. have a great day