Hello.
Hello, how may help you today?
I need to change the destination airport code because I have given a wrong airport code while booking. Can you please help me to change my reservation details?
Sure, may I know your name?
I am happy for your response. My name is Sharon Smith.
Wait a minute.
Sure, I will wait for your reply. Take your time.
There was no reservation found on your name.
It's ok, not a problem with that. Thank you for  the information.
Thank you for choosing us.