You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I support you today?

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

ASSISTANT: Sure, please let me know your name to check the reservation status.

USER: I am Joshua Jones.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, we did not found any reservation by this name.

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

ASSISTANT: Thank you for availing us.