user_query: 9.pm
response_text: OK, I'll remind you on Wednesday at 9:00 AM.
user_query: Tomorrow.
response_text: Alright, buy a new coat. This will be for Wednesday. At what time?
user_query: To buy a new coat.
response_text: OK, buy a new coat. When do you want to be reminded?
user_query: Create a reminder.
response_text: What's the reminder?
User: Please add 555-1234 to my favorite contact list.
Parse: Add_contact ( phone_number « 555-1234 » )