You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you  at this moment?

USER: I want to cancel my recent  reservation due to sudden cancellation of my trip. Can you help me?

ASSISTANT: Sure, may I know your name please?

USER: Edward Jones here.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Sorry to inform you that, we could not find any reservation on your name.

USER: That's Fine, Thank you.

ASSISTANT: Thank you for approaching us.