user_query: Let's meet for coffee
response_text: I got: Let's meet for coffee. Ready to send it?
user_query: Oliver Turner
response_text: Alright, what's the message?
user_query: send a message
response_text: Who do you wanna message?
User: Send a　picture to 早苗 using Messenger.
Parse: Send_digital_object ( object « a picture » provider « Messenger » recipient Personal_contact ( person « 早苗 » ) )