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: Ask Lyft to cancel my ride for me now.
Parse: Cancel_ride ( provider « Lyft » )