user_query: create a shopping list with napkins, milk, and banana 
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 "Shopping" and added those three things.
User: Let's order a Lyft to get me at 11am no make that 12pm.
Parse: Order_ride ( pickup_time « 12pm » provider « Lyft » )