You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I need to cancel my reservation which I have done to participate in singing event but unfortunately  event got cancelled, can you please cancel my reservation?

ASSISTANT: Ok, please wait for a moment.

USER: Ok.

ASSISTANT: May I know your good name please?

USER: Sure, my name is Edward White.

ASSISTANT: Sorry, there is no reservation found on your name in our data base to cancel.

USER: Oh! it's ok no problem. Thank you for your information.

ASSISTANT: Thank you for approaching us.