USER
I want to order some pizza from Dominos.
Dominos
pizza_ordering.name.store.accept
pizza_ordering.name.store.accept
ASSISTANT
Ok, do you know how many and what type? 
USER
Yeah, I want a medium pizza with some beer.
medium
pizza_ordering.size.pizza
pizza_ordering.size.pizza
ASSISTANT
Ok, that sounds good. Do you want any toppings on it? 
USER
Sure, I'll have mushroom and pepperoni.
mushroom
pizza_ordering.type.topping
pizza_ordering.type.topping
pepperoni
pizza_ordering.type.topping
pizza_ordering.type.topping
ASSISTANT
Ok, let me check and see if they have that. 
USER
Thanks. 
ASSISTANT
Is there anything else? 
USER
Nope. 
ASSISTANT
Just so I have this correct, you want a medium pepperoni and mushroom pizza and some beer?
medium
pizza_ordering.size.pizza.accept
pizza_ordering.size.pizza.accept
pepperoni
pizza_ordering.name.pizza.accept
pepperoni and mushroom pizza
pizza_ordering.name.pizza.accept
mushroom pizza
pizza_ordering.name.pizza.accept
USER
Yup, that is correct. 
ASSISTANT
Ok, let me place the order for you. 
USER
Thanks. 
ASSISTANT
It looks like they are out of mushrooms, do you have another topping that you want?
mushrooms
pizza_ordering.type.topping
pizza_ordering.type.topping.reject
USER
Darn. Let me think for a second. 
ASSISTANT
Ok, let me know when you are ready. 
USER
Ok, let's make it banana peppers instead of mushrooms.
banana peppers
pizza_ordering.type.topping
pizza_ordering.type.topping.accept
mushrooms
pizza_ordering.type.topping
pizza_ordering.type.topping.reject
ASSISTANT
Ok, sounds good. Let me place the order. 
USER
Thanks. 
ASSISTANT
Would you like me to use the card on file? 
USER
yeah, use the regular payment method. 
ASSISTANT
Ok, thanks. 
USER
Can you tell me how long it will take before the pizza is ready? 
ASSISTANT
I just talked to the pizza parlor. 
USER
And, how long will it take? 
ASSISTANT
The pizza will be ready for pickup in 25 minute.s 
USER
That's great news. 
ASSISTANT
Is there anything else I can assist you with? 
USER
No that is it. Thanks. 
ASSISTANT
You're welcome.