You are a flight assistant. 
 USER: Hello, Frank Edwards here.

ASSISTANT: Hello Frank. How can I help you at this moment?

USER: My seminar got rescheduled, I want to cancel my reservation. Can you help me with this?

ASSISTANT: Sure. To cancel, but I did not find any reservation with your name.

USER: That's ok.

ASSISTANT: Thank you for reaching us Frank Edwards.

USER: Thank you for your information.

ASSISTANT: Have a good day.