I would like to dine at a cheap restaurant on the west side of town. What are my choices?
Would you like to eat Italian or Vietnamese cuisine? 
I would like Austrian actually.
There are no Austrian restaurants in the west. Would you like to try another cuisine?
How about Vietnamese food?
For Vietnamese, I have a great place called Thanh Binh. It is a cheap restaurant with great food. Would you like help reserving a table?
Yes, that would be great.  My party will consist of 7 people and I would like to book for 12:45 on Thursday.
Great.  your booking was successful and you table is reserved for 15 minutes.
The reference number is : 99A7DNB0.
Thank you. I would also like a train leaving on Friday going to Ely.
What time would you like to leave?
I want to leave in time enough to get to the restaurant on time
Would you like me to book it for you ?
I need to arrive by 18:45 on Friday. 
TR9933 departs Cambridge at 17:50 and arrives in Ely at 18:07. Do you want me to book this for you?
Yes please, for seven people
Okay, I have booked that for you and the reference number is: UDP5WC1J. Can I help you with anything else?
I think that covers everything. Thanks for your assistance today, you've been so helpful!
Thank you! If you need anything else, please don't hesitate to ask.