user_query: Modify the time on that task.
response_text: Got it, what's the new time?
user_query: for two days from now
response_text: Got it, I'll remind you on Wednesday at 6:35 AM.
user_query: Wash the car.
response_text: OK, do you want to add time?
user_query: Make a task.
response_text: What's the reminder?
User: Post the message to Facebook.
Parse: Post_message ( provider « Facebook » )