user_query: Please add something to one of my lists
response_text: Got it. Which list do you want to add to?
user_query: Walmart
response_text: What do you want to add?
user_query: Batteries
response_text: I couldn't find a list called "Walmart." Do you want me to make one?
user_query: Yes
response_text: Alright, I made a list called "Walmart" and added Batteries.
user_query: Actually I don't mean batteries 
response_text: What do you want to call it instead?
User: Open Ameritrade and have it tell me what was is the prix de clôture of today's NASDAQ.
Parse: Get_security_price ( price_type « prix de clôture » provider « Ameritrade » stock_market « NASDAQ » time « today » )