user_query: meet me in the park in 15 minutes
response_text: I got: Meet me in the park in 15 minutes.. Ready to send it?
user_query: Luna Roberts
response_text: Got it, what's the message?
user_query: send a text instead
response_text: Sorry,, who do you wanna text?
user_query: Luna Roberts
response_text: Here are some results
user_query: send an email to Luna
response_text: Looks like there's no email address for that contact.
User: Stop, no start playing soccer for an hour.
Parse: Start_exercise ( activity « soccer » duration « hour » )