user_query: make a list called road trip
response_text: OK, I made a list called "Road Trip".
user_query: make a list called target
response_text: OK, I made a list called "Target".
user_query: make a list called safeway
response_text: OK, I made a list called "Safeway".
User: Let me pay the phone bill.
Parse: Pay_bill ( service_type « phone » )