You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I have made an earlier reservation to attend for an interview, due to some issues it has been cancelled. Can you please help me with cancellation?

ASSISTANT: Sure. May I know your name please?

USER: Thanks for accepting my request, Jack Harris is my name.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Thanks for your time. Sorry I could not found your flight reservation to cancel it.

USER: Ok, thanks for your kind response.

ASSISTANT: Thank you.