user_query: create a beach list
response_text: Sure, I made a list called "Beach".
user_query: add chair
response_text: Sure. Chair on your list called "Beach". Anything else?
user_query: add towel
response_text: Got it. Towel. Anything else?
User: Order a ride for 7pm
Parse: Order_ride ( pickup_time « 7pm » )