You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Gary Edwards.

ASSISTANT: How can I help you?

USER: I need to cancel my reservation due to some personal issues.So can you help me with cancellation of my reservation?

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry, no reservation found by your name.

USER: Not an issue, thanks for your information.

ASSISTANT: Thank you.