USER
Assistant, can you order a coffee for me from Peets?
ASSISTANT
Yes, which one?
USER
The one on Green Street.
Green Street
coffee_ordering.location.store
coffee_ordering.location.store
ASSISTANT
Alright and what is it you'd like?
USER
An iced vanilla latte would be great!
iced vanilla latte
coffee_ordering.preference
vanilla latte
coffee_ordering.name.drink
ASSISTANT
What size?
USER
A large please.
large
coffee_ordering.size.drink
coffee_ordering.size.drink
ASSISTANT
Darn. It looks like they're out of the flavoring for the vanilla latte.
vanilla latte
coffee_ordering.name.drink.reject
coffee_ordering.name.drink.reject
USER
Hm. Ok. How about a caffe mocha?
caffe mocha
coffee_ordering.name.drink
coffee_ordering.name.drink
ASSISTANT
Ok. Let me check.
USER
Alright. 
ASSISTANT
Ok, no problems! It'll be about $3.50
USER
Great.
ASSISTANT
And it's charged to your Peets account.
USER
Perfect.
ASSISTANT
Ok then, a large caffe mocha from Peet's on Green street. It will be ready in about half an hour.
large
coffee_ordering.size.drink.accept
coffee_ordering.size.drink.accept
caffe mocha
coffee_ordering.name.drink.accept
coffee_ordering.name.drink.reject
Green street
coffee_ordering.location.store.accept
coffee_ordering.location.store.accept
USER
Thank you!
ASSISTANT
You're welcome, anything else I can do for you?
USER
No that's all, I'll pick it up in half an hour.
ASSISTANT
Ok, have a good day.