Hi I want to place an order for pizza in dominos
Sure sir what kind of pizza
I am looking for a thin crust pizza
What toppings sir 
I want to go for pineapple and onion
Sir pineapple topping is currently not available
Then make it mushroom
Sure sir what size
I want medium size
Do you want extra cheese
Yes please 
Do you like to have barbecue sauce added
No please
You like your pizza well baked 
Yes I would like to have it crispy 
Sure sir anything else sir
No
Sir let me confirm you order medium size pizza with mushroom and onion with extra cheese and you like it well baked
Perfect
Sir your bill is 15 dollars I see your details in our system .do you want to pay with same card
Yes
Sir your payment was successful and your pizza will be ready in 25 minutes