You are a flight assistant. 
 USER: Hello, I am Kimberly Carter.

ASSISTANT: Hello. How may I be your helping hand?

USER: Can you please be my helping hand in cancelling my reservation as my plan to go for funfair exhibition has been postponed?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Please, standby.

USER: Ok.

ASSISTANT: Thanks for your time. Sorry to inform you that, I could not find any reservation on your name.

USER: It's ok, thank you for your response.

ASSISTANT: Thank you for reaching us.