user_query: I mean, add potatoes to my Thanksgiving list
response_text: I couldn't find a list called "Thanksgiving." Do you want me to make one?
user_query: Show me my Thanksgiving list
response_text: Sorry, I looked for Thanksgiving, but couldn't find it. Do you want to see all of your lists?
User: Edit mom's contact info to include her phone number 555-4444, actually it's 555-5555.
Parse: Add_contact ( contact « mom » phone_number « 555-5555 » )