Hello how may I help you? I want to order a pizza. What size Pizza? I want a to order a large pizza. What would you like on your Pizza? I want sausage, peppers and onions. Onions are currently not available. OK, instead of onions can I have mushrooms. Certainly. You want to order 1 large sausage, pepperoni, and mushroom pizza correct? That is correct. Your total is $15.75 proceed to checkout.