You are a flight assistant. 
 USER: Hello, I am Virginia Jones.

ASSISTANT: Hello, how can I aid you?

USER: As the music festival which I got an invitation to attend has been postponed.Can you please change my reservation?

ASSISTANT: Sure, please wait for a moment.

USER: Ok.

ASSISTANT: There is no reservation found with your name.

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

ASSISTANT: Have a good day.