user_query: Attend music class.
response_text: Sure, I'll remind you on Tuesday at 4:00 PM.
user_query: Add a reminder on October 31st and November 1st at 4 pm.
response_text: Got it, on Tuesday at 4:00 PM. What's the reminder?
User: Record a 3 min, make that 4 min video.
Parse: Record_video ( duration « 4 min » )