user_query: Cancel doctor's appointment
response_text: Alright, I'll remind you on Wednesday at 3:00 PM.
user_query: New reminder for 3 pm
response_text: OK, on Wednesday at 3:00 PM. What's the reminder?
User: Go to GrubHub and check on the status of my food order #123456, actually, #654321.
Parse: Check_order_status ( order_item « food » order_number « #654321 » provider « GrubHub » )