I want to order a pizza today
What size would you like
Medium
What crust do you prefer?
Thick please.
What are the toppings you want? 
Pineapple, grilled chicken, green pepper and olive
I am sorry that pineapple is out. Would you like to substitute for something else?
How about brussel sprouts?
I am sorry that brussel sprouts is out of stock as well, would you like to pick something else?
How about ham?
Yes ham is available. What kind of cheese do you like?
Cheddar.
Great. I have a medium size thick crust pizza with ham, grilled chicken, green pepper and olive. Is that correct?
Yes, that's right.
Great, it will be ready in about 25 min.
Thank you very much.
My pleasure. Is there something else I can help?
No thanks, that's all I want.
Thanks for your order, have a great day!