user_query: the to do list
response_text: Sure, I cleared the list called "To Do."
user_query: clear the list
response_text: You have two lists. Which one do you want to clear?
user_query: pull up my to do list
response_text: You have two lists with similar names. Which one do you want to know about?
User: Open my BOA and pay $200, no make that $400 towards the rent this month.
Parse: Pay_bill ( billing_date_span « this month » payment_amount « $400 » provider « BOA » service_type « rent » )