Hello.
user
Hello, could you please tell us for what help you approached us?
assistant
 I want to change my destination airport code in my existing reservation, can you please help me out?
user
Sure, could I have your name please?
assistant
My name is Christine Johnson.
user
Ok, please allow me a moment.
assistant
Ok, take your time.
user
Sorry, there is no reservation with your name in our portal to make changes further.
assistant
That's ok, thank you for checking.
user
 You are welcome, have a great day.
assistant