user_query: I am running late but see you soon 
response_text: I got: I am running late, but see you soon.. Ready to send it?
user_query: yes 
response_text: OK, what's the message?
user_query: sister 
response_text: Got it. Would you like me to remember that your sister's name is Sister?
user_query: I want to send a message to sister 
response_text: OK, What's your sister's name?
user_query: I want to send a message 
response_text: Who do you wanna message?
User: I don't need my taxi this morning, um yes, this morning.
Parse: Cancel_ride ( pickup_time « this morning » )