USER
I want to eat some pizza for lunch.
ASSISTANT
Okay, which pizza store would you like to order from?
USER
I would like to get pizza from Dominoes.
Dominoes
pizza_ordering.name.store.accept
pizza_ordering.name.store.accept
ASSISTANT
What would you like to order?
USER
I want two large pizzas.
large
pizza_ordering.size.pizza
pizza_ordering.size.pizza
ASSISTANT
What kind of topping do you want?
USER
For my first pizza, I want it with just pepperoni.
pepperoni
pizza_ordering.type.topping
pizza_ordering.type.topping.accept
ASSISTANT
What about your second one?
USER
I want it to include all the different types of meat.
meat
pizza_ordering.type.topping
ASSISTANT
There is a specialty pizza called the MeatZZa.
MeatZZa
pizza_ordering.name.pizza
pizza_ordering.name.pizza
USER
Which kind of meats does it have?
ASSISTANT
It includes ham, beef, pepperoni, and Italian sausage.
ham
pizza_ordering.type.topping.accept
pizza_ordering.type.topping.accept
beef
pizza_ordering.type.topping.accept
pizza_ordering.type.topping.accept
pepperoni
pizza_ordering.type.topping.accept
pizza_ordering.type.topping.accept
Italian sausage
pizza_ordering.type.topping.accept
pizza_ordering.type.topping.accept
USER
Sure get me that one.
ASSISTANT
Would you like anything else?
USER
No I believe that is all for right now.
ASSISTANT
Okay, I have ordered 1 large pepperoni pizza and 1 large MeatZZa pizza.
large
pizza_ordering.size.pizza.accept
pizza_ordering.size.pizza.accept
pizza_ordering.size.pizza.accept
pizza_ordering.size.pizza.accept
pepperoni pizza
pizza_ordering.name.pizza.accept
pizza_ordering.name.pizza.accept
MeatZZa pizza
pizza_ordering.name.pizza.accept
pizza_ordering.name.pizza.accept
USER
How much is it and how will it take?
ASSISTANT
The total is 15.99 and it will be ready for pickup in 25 minutes. The receipt has been sent to your phone. 
USER
Okay, thank you!
ASSISTANT
No problem, goodbye.