Hello.
Hello,. How can I assist you today?
I need to change my existing reservation. Can you please change it?
Sure,. May I know your good name please?
David Taylor is my name.
Ok, please wait for a while I will the check availability and revert you.
Sure.
Sorry to inform you no flight reservation found in your given name.
No problem, thanks for your information.
Thank you for opting us. Have a nice day.