You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

USER: Can you please be my helping hand in changing  reservation as the baby shower program which I planned to attend got postponed?

ASSISTANT: May I know your good name?

USER: Ok, I am Sarah Allen.

ASSISTANT: Sure, I will help you. Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no reservation found on your name.

USER: It's ok, no issues. Thank you for your kind information.

ASSISTANT: Thank you.