user_query: create a list for customers
response_text: Alright, I made a list called "Customers".
user_query: add bart to customers
response_text: Got it. Bart to customers on your list called "Customers". Anything else?
User: What is the pre-market low, no, average on JBL?
Parse: Get_security_price ( price_type « average » security_identifier « JBL » trading_session « pre-market » )