Hello.
user
Hello, how may I serve you today?
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 with this. May I know your good name please?
assistant
Thanks. My name is Karen Hall.
user
Ok, wait for a mean while please.
assistant
Ok, take your time.
user
Sorry Hall, there is no flight found as per your travelling details.
assistant
It's ok, thank you for the information.
user
You are welcome.
assistant