user_query: Morning Task list
response_text: Which item?
user_query: Can you remove cheese from that list?
response_text: You have two lists. Which one do you want to delete items from?
user_query: Add buy milk and cheese in morning task list
response_text: OK, I made a list called "Morning Task" and added those two things.
User: Check apple no, Walmart stock.
Parse: Get_security_price ( security_identifier « Walmart » security_type « stock » )