user_query: Create a new list
response_text: OK, what do you want to call it?
user_query: Camping
response_text: Sure, I made a list called "Camping".
user_query: add items to Camping list
response_text: What do you want to add?
User: How much do, do, did I owe on my Visa the last billing cycle?
Parse: Get_bill ( billing_cycle « last billing cycle » card_company « Visa » )