Hello.
Hello, how may I help you?
Can you please help me in changing my existing reservation?
Sure, I am here to help you for this. May I know your name please?
I am Donald Clark.
Please wait for a while, let me check your reservation status in our database.
Ok.
Sorry for inconvenience, no reservation is found with your criteria.
Ok, no problem. Thank you.
Thank you very much for contacting our agency.