I would like to place an order. 
What would you like? 
A cheese pizza.
What size? 
Extra large
Any toppings? 
Yes, pepperoni and bacon.
Unfortunately, we are out of bacon. Would you like to add a different topping?
Yes, onions.
Would you like anything else? 
No, that is all. 
OK. Can I confirm you order? 
 Yes, please. 
An extra large cheese pizza with pepperoni and onions.
That is correct. 
Pickup or delivery? 
Pickup. 
It will be ready in 25 minutes. 
What is the total? 
$15. We will see you in 25 minutes. 
Thank you! 
You're welcome!