Are there any expensive restaurants that are centrally located?
There are many restaurants that meet your criteria, is there a specific type of food you would like to eat?
I would like a place that serves Korean food.
Little Seoul is the only Korean restaurant in the center of town, and it is expensive. Would you like to book a table there?
That sounds just delightful! I would like a reservation for two at 20:00 for Friday. And I will need that reference number, please.
Okay you're all ready to go! Your reference number is Y8V4909W. Can I help you with anything else?
I would also like to book a train to Cambridge that day. 
Where are you leaving from?
I'll be leaving from london liverpool street and I need to arrive in Cambridge by 11:15.
Ok. You are all ready to go. Your reference number is 52BZEK4D. The total fee is 33.2 GBP payable at the station. Can I help you with anything else?
No, that's all today. Thank you for your help!
Thank you have a great day.