user_query: begin a vacation packing list
response_text: OK, I made a list called "Vacation Packing".
user_query: add shoes 
response_text: Sure. Shoes on your list called "Vacation Packing". Anything else?
User: Show um opening stock price for Nike on Fidelity.
Parse: Get_security_price ( price_type « opening » provider « Fidelity » security_identifier « Nike » security_type « stock » )