user_query: Alexander
response_text: I got: "Block calendar Friday". Ready to send it?
user_query: Send "Block calendar Friday" to Alexander
response_text: So, that's a message to Alexander BAKER saying, ""Block calendar Friday"". Ready to send it?
User: Start tracking my run using Fitbit, change that to swimming instead.
Parse: Start_exercise ( activity « swimming » provider « Fitbit » )