You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Will you be my helping hand in cancelling my reservation as the food festival which I want to attend got postponed?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your name for seeing the present status?

USER: I am Mark Young.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: Thank you for waiting. Sorry to inform you that we didn't find any reservation on your name.

USER: It's ok.

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

USER: Thank you for your kind information.