You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I oblige you?

USER: Can you please change my reservation as my plan to attend for music festival got postponed?

ASSISTANT: Sure. May I know your good name for further process?

USER: I am Christopher Wright.

ASSISTANT: Please wait for a minute.

USER: Ok.

ASSISTANT: Thanks for waiting. There is no reservation found with your name.

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

ASSISTANT: Thanks for reaching us.