You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Frank King. Please cancel my reservation, which I have done with my name previously.

ASSISTANT: Sure, I will help you.

USER: Thanks.

ASSISTANT: Sorry to say, there is no reservation on your name in our database.

USER: It's ok, thanks for your information.

ASSISTANT: Thank you for opting us.