user_query: display my shopping list 
response_text: You have two things on that list.
user_query: I want to add items to my shopping list 
response_text: What do you want to add?
user_query: I want to add to my shopping list 
response_text: What do you want to add?
User: I need to check the status of my order on Amazon.
Parse: Check_order_status ( provider « Amazon » )