You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Rachel Davis here.

ASSISTANT: How may I help you?

USER: Can you cancel my flight ticket reservation? As my wedding anniversary celebration is been postponed to some other dates in New York.

ASSISTANT: Sure, I am here to help you. Please wait for a moment to check your reservation status.

USER: Ok.

ASSISTANT: Sorry to say, no reservation found on your name in my records.

USER: Ok, may be it has been cancelled by my brother already.

ASSISTANT: Thank you for reaching us, have a nice day.

USER: Thank you.