You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am planning to change my destination airport code in my existing reservation, can you pleas help me out?

ASSISTANT: Sure, I am here to help you out.

USER: Thank you.

ASSISTANT: May I know your name to check your reservation status?

USER: Sure, my name is Deborah Hill.

ASSISTANT: Ok, please wait for a moment.

USER: Ok, take your time.

ASSISTANT: Sorry, there is no reservation found on your name in our records.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for reaching us.