You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: Can you please help me in changing my reservation as the sports festival which I want to attend got postponed?

ASSISTANT: Sure. May I know your name?

USER: I am Timothy Moore.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say, no reservation found with your name.

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

ASSISTANT: Thanks for reaching us.