user_query: renive all items from my to-do list
response_text: You have two lists with similar names. Which one do you want to clear?
user_query: yes
response_text: It looks like that list is already empty.
user_query: I want to see all of my lists
response_text: You have quite a few lists.
User: The Lyft I ordered for tonight, actually for tomorrow won't be needed.
Parse: Cancel_ride ( pickup_time « tomorrow » provider « Lyft » )