You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

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

ASSISTANT: Sure, please give me a moment.

USER: Sure.

ASSISTANT: May I know your name please?

USER: Nancy Nelson here.

ASSISTANT: Sorry,  there is no reservation found on your name.

USER: No issue, Thanks for the information.

ASSISTANT: Thank you for approaching us.