Hello.
Hello, how may I help you?
 I want to change my destination airport code in my existing reservation, can you please help me out?
Sure, may I know your name please?
My name is Melissa Mitchell.
Ok, please wait for a moment.
Ok, I will wait for your information.
Sorry, there was no reservation found with your given name.
It's ok, thank you for the information.
Thank you for opting us.