user_query: 10:00AM
response_text: OK, I'll remind you on November 4 at 10:00 AM.
user_query: Next week Friday
response_text: Got it, See the doctor. This will be for November 4. At what time?
user_query: See the doctor
response_text: Got it, See the doctor. When do you want to be reminded?
user_query: New reminder
response_text: What's the reminder?
User: track a 5 min sit ups session
Parse: Start_exercise ( activity « sit ups » duration « 5 min » )