user_query: Could you create a list for me named Costco
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 pears and bananas on it
response_text: Got it, I added pears and bananas.
User: How much did I owe on my Discover billing statement from February.
Parse: Get_bill ( billing_date_span « February » card_company « Discover » )