user_query: put makeup on the list
response_text: OK. Which list do you want to add to?
user_query: to do
response_text: Got it, I added makeup.
user_query: take it back off
response_text: Which list?
user_query: to fdo
response_text: Which list?
User: Please pay the um water bill.
Parse: Pay_bill ( service_type « water » )