You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Rachel Carter.

ASSISTANT: Ok.

USER: I want to cancel my reservation due to my cousin'd wedding has postponed.

ASSISTANT: Sure, please wait for a while.

USER: Sure.

ASSISTANT: No reservation found on your name.

USER: That's okay, thanks for your help.

ASSISTANT: Thank you for approaching us.