You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I amend you?

USER: I made a reservation earlier to attend my Cousin's Marriage, but due to some health issues I am unable to attend. Can you aid me in changing my existing reservation?

ASSISTANT: Sure, may I know your name for the changing process?

USER: Myself Carolyn Rodriguez.

ASSISTANT: Please be on hold.

USER: Sure.

ASSISTANT: Thank you for your time.

USER: Ok.

ASSISTANT: Sorry to inform you, we did not find any reservation in your name.

USER: That's ok, thank you.

ASSISTANT: Thank you for choosing us.