user_query: I need shoes put onn my list
response_text: Alright. Which list do you want to add to?
user_query: sports
response_text: OK, I added shoes.
user_query: switch it to the shopping list
response_text: What do you want to add?
User: I want to see to see my MasterCard bill.
Parse: Get_bill ( card_company « MasterCard » )