You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: I need some help with changing my previous flight ticket booking, can you please help me with that one?

ASSISTANT: Sure, I will help you with that changing reservation.

USER: Thank you for accepting my request.

ASSISTANT: May I know your name for checking your previous reservation status.

USER: Sure, my name is Scott Nelson.

ASSISTANT: Please wait for a while.

USER: Sure, I can wait.

ASSISTANT: There is no active reservation found on your name in our database to change.

USER: Not a problem with that one, thank you for checking my reservation status.

ASSISTANT: Thank you for reaching us, have a great day.