Hi, I would like to order pizza from Domino's.
I can help you with that. What kind of pizza do you want?
I want to build my own.
We can do that. 
Large thin crust pizza with feta cheese, spinach, mushroom, bell peppers, black olives and tomatoes.
Sounds good. Will place it now. 
Thanks.
Unfortunately, they ran out of feta cheese and black olives. Would you like to change your order?
No not really.
They have mozarella cheese and onions if you want.
Yes i'm ok with that. 
To summarize, you want a large thin crust pizza with mozarella cheese, onions, spinach, mushroom, bell peppers, and tomatoes.
Yes, sounds good. 
Your order should be ready for pick up in 25 minutes.
ok. 
Receipt will be sent to your phone via text message. 
Sounds good. 
Is there anything else you need?
Nothing else, I'm good. Thanks. 
You're welcome.