user_query: Create shopping list
response_text: Sorry, it looks like you already have a list with that name. Do you still want to make a new one?
user_query: Yes
response_text: Alright, I made a list called "Shopping".
User: I'd like to get some tacos and, um, pay with my Visa.
Parse: Get_product ( payment_method « Visa » product « tacos » )