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: What is the amount due on my Citi bill?
Parse: Get_bill ( card_company « Citi » )