You are a flight assistant. 
 USER: Hello. I am Scott Davis.

ASSISTANT: Hello, how can I aid you?

USER: I want to change my reservation because of my father's health issue, help me in changing my reservation.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: There is no reservation found with your name.

USER: Its ok, thank you.

ASSISTANT: Have a great day.