Hello.
user
Hello, how can I aid you?
assistant
 I want to change my destination airport code in my existing reservation, can you please help me out?
user
Sure, I am here to help you.
assistant
Thank you.
user
May I know your name?
assistant
My name is Cynthia Campbell.
user
There is no reservation found under your name.
assistant
That's ok, thank you for checking.
user
Thank you for opting us.
assistant