You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: Can you please change my reservation, due to an emergency?

ASSISTANT: Sure, I will aid you with that. May I know your name for further process?

USER: My name is Nicholas Jackson.

ASSISTANT: Ok, please hold on a moment.

USER: Sure.

ASSISTANT: There is no previous reservation available under your name.

USER: Ok, no issue. Thank you.

ASSISTANT: Thank you for reaching us.