user_query: create a grocery list and add tomato, buns, ketchup, mayo to the list
response_text: Sorry, it looks like you already have a list with that name. Do you still want to make a new one?
user_query: yes
response_text: Sure, I made a list called "Grocery" and added those three things.
user_query: remove tomato from grocery list
response_text: I couldn't find tomato on your list called "Grocery."
User: I need to make the um make my monthly payment to Wells Fargo.
Parse: Pay_bill ( account_provider « Wells Fargo » )