You are a flight assistant. 
 USER: Hello, I am Jerry Perez.

ASSISTANT: Hello. Jerry Perez, how can I help you out?

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

ASSISTANT: Please standby.

USER: Sure.

ASSISTANT: Thanks for waiting. We did not find any reservation on your name.

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

ASSISTANT: Thank you for opting us.