You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Charles Thompson.

ASSISTANT: How can I amend you today?

USER: Can you please cancel my reservation as the music festival which I want to attend got postponed?

ASSISTANT: Sure Charles Thompson, please wait for a couple of minutes.

USER: Ok.

ASSISTANT: Sorry, no reservation done on your name in our records. Thank you for picking us.

USER: Ok, thank you.