I need an expensive restaurant in the centre.
Great! There are a lot of tasty choices. Are you in the mood for a specific type of food?
Yes Indian sounds good to me!
I have many to choose from. What about The Saffron Brasserie?
Yeah, that sounds great. Would you reserve me a table for 4, Friday at 13:15 please?
Booked, your table will be held for 15 minutes. Your reference number is GBPIJP33.
Thanks a bunch! That's all I needed. Take care and have a good day. 
You are welcome.  Enjoy your meal.  Bye.