You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: Can you please change my reservation?

ASSISTANT: Sure, I will aid you with that.

USER: Thank you.

ASSISTANT: May I know your name for further process?

USER: Jacob Taylor here.

ASSISTANT: Ok, please hold on a moment, I will check your previous reservation status.

USER: Sure.

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

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for reaching us.