You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I want to change my reservation due to postponed of my Arts competition, so please assist me in changing my reservation.

ASSISTANT: Sure, we are here to aid you.

USER: Thank you for accepting my request.

ASSISTANT: Please provide your name to proceed further.

USER: Sure, my name is Emma Baker from Charlotte.

ASSISTANT: Thank you for providing name, please wait.

USER: Ok, I will wait.

ASSISTANT: Thank you for waiting. We are sorry to inform you that there was no reservation on your good name.

USER: No worries, thank you.

ASSISTANT: Thank you for availing us.