user_query: Add Bon Jovi to the list.
response_text: Got it. Which list do you want to add to?
user_query: Music
response_text: OK. Which list do you want to add to?
user_query: Music list
response_text: What do you want to add?
User: Bon Jovi
Parse: Add_item_to_list ( items « Bon Jovi » )