user_query: Isabella Evans.
response_text: Calling Isabella EVANS.
user_query: Cancel that and make a call to Isabella.
response_text: Calling Isabella EVANS.
user_query: How about making a call to Mia for me?
response_text: Calling Mia WILSON.
User: No, please call Isabella Evans.
Parse: Initiate_call ( callee Personal_contact ( person « Isabella Evans » ) )