user_query: Add computer, chairs and table to my Shopping list.
response_text: Sure, I added those two things.
user_query: Delete computer from the list.
response_text: I couldn't find computer.
user_query: Delete chairs from the list.
response_text: I couldn't find chairs.
User: Pay my electricity bill to EDF.
Parse: Pay_bill ( account_provider « EDF » service_type « electricity » )