user_query: create a 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: shopping for holiday
response_text: OK, I made a list called "Shopping For Holiday".
user_query: add beverage
response_text: OK, what do you want to call it?
user_query: add beverage to "Shopping For Holiday"
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: no
response_text: No problem, nothing's been changed.
User: Get some water, I mean soda.
Parse: Get_product ( product « soda » )