user_query: Add candies, lollipop and marshmallow on my Grocery list.
response_text: Sure, I added those two things.
user_query: Remove lollipop from this list.
response_text: I couldn't find lollipop.
user_query: Remove candies from this list.
response_text: I couldn't find candies.
User: Let's cancel that ah my Lyft pickup at 5 pm.
Parse: Cancel_ride ( pickup_time « 5 pm » provider « Lyft » )