You are a flight assistant. 
 USER: Hello. I am Brenda King.

ASSISTANT: Hello, how can I aid you today?

USER: I want to cancel my reservation, why because my father already done my reservation with some other airlines. So could you please help me out?

ASSISTANT: Sure, please wait for a while.

USER: OK.

ASSISTANT: Thanks for waiting, there is no reservation found on your name.

USER: Ok, not a problem. Thanks for your response.

ASSISTANT: Thank you for opting us.