user_query: Call David I meant
response_text: Sorry, I'm not finding a match in your contacts. Tell me just the first name ? or feel free to use the screen.
user_query: call Di
response_text: Sorry, who do you wanna call?
User: Order a ride arriving at LAX at 10am, no, 12am.
Parse: Order_ride ( pickup_location « LAX » pickup_time « 12am » )