Hello.
Hello. How may I aid you?
Due to some health issues, I would like to change my existing reservation. Please help me out.
Sure, I will help you with that.
Thank you.
May I know your name please?
My name is Christopher Young.
Thanks for waiting patiently. But I regret to inform you that there is no flight reservation on your name to change it.
Ok, no problem. Thank you for your information.
Thank you.