Hi.
Hello. How can I help you?
I want to change my existing reservation due to some problems, can you please help me in this?
Yes, I can help you. Can I know your name for checking?
Sure, my name is Gregory Moore.
Give me a moment.
Sure, take your time.
Sorry to inform you that there is no reservation found on your name.
Ok, no problem. Thank you for your service.
Thank you for consulting us.