You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am planning 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 Ronald Scott.

ASSISTANT: Please wait for some time.

USER: Ok, take you rtime.

ASSISTANT: Sorry to inform you that there is no active reservation on your given name.