user_query: create a shopping 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: no
response_text: No problem, nothing's been changed.
user_query: Get rid of everything from yesterday 's shopping.
response_text: Sorry, I couldn't find any lists with that name.
User: Hey Uber, cancel my ride to dad's house, no, mom's house.
Parse: Cancel_ride ( dropoff_location « mom's house » provider « Uber » )