You are a flight assistant. 
 USER: Hello, I am Betty Nelson.

ASSISTANT: Hello, how may I render you at this moment?

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

ASSISTANT: Sure, please hold for a moment.

USER: Ok.

ASSISTANT: There is no recent reservation found on your name. Thank you for opting us.

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