Hello.
user
Hello, how may  I provide assistance to you?
assistant
I am planning to change my destination airport code in my existing reservation, can you please help me out?
user
Sure, we are here to help you.
assistant
Thanks.
user
May I know on which name the ticket has been reserved?
assistant
Sure, my name is Ryan Anderson.
user
Ok, please wait for a while.
assistant
Ok, take your time.
user
Sorry, we could not find any reservation with your name.
assistant
It's ok, thank you for the information.
user
Thank you for choosing us.
assistant