You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you today?

USER: Owing to an emergency, I want to change my reservation? Can you please help me?

ASSISTANT: Sure. May I know your good name?

USER: I am Brenda Phillips.

ASSISTANT: Please wait for a while.

USER: Sure.

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

USER: It's ok. Thank you for the information.

ASSISTANT: Thank you.