user_query: Could you create a list for me named Things i need
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: Add toothpaste and hand sanitizer on it
response_text: OK, I added those two things.
user_query: frozen berries and corn
response_text: OK, what do you want to call it?
user_query: jelly and peanut butter and bread
response_text: Sorry, I didn't get that. What do you want to call that list?
User: Take another picture of Sally, oops I mean Sam.
Parse: Take_photo ( subject « Sam » )