You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

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

ASSISTANT: Sure, I am here to aid you.

USER: Thanks for considering my request.

ASSISTANT: Please mention your name to proceed further.

USER: Sure, my name is Rebecca Edwards.

ASSISTANT: Ok, please wait for a moment.

USER: Ok, I will wait for your response.

ASSISTANT: Thank you for waiting, we did not find any reservation on your given name in our database.

USER: That's Ok, thank you.

ASSISTANT: Thank you for choosing us.