Hello.
Hello, how can I serve you today?
Can you please help me in changing my existing reservation?
Sure, we are here to help you. Can you please provide me your name?
My name is Katherine Clark.
Thank you for providing your name, Please stand by I will revert you.
OK.
Thank you for waiting, I am sorry to say there was no reservation found by your name.
OK, thanks for your information.
Have a nice day.