You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: My holiday vacation has been postponed, can you please change my reservation?

ASSISTANT: Sure, may I know your name.

USER: Sure, my name is Betty Baker.

ASSISTANT: Betty, there is no reservation found under your name.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.