You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I want to change my destination airport code in my existing reservation, can you please help me out?

ASSISTANT: Sure, I am here to help you with that, can I know your good name to proceed further?

USER: Sure, my name is Sharon Green.

ASSISTANT: Thank you. Please be online for a while. I will check your reservation status and get back to you.

USER: Ok, take your time.

ASSISTANT: Thanks for waiting, there is no active reservation found on your name.

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

ASSISTANT: Welcome Sharon Green.