Hello.
Hello, how may I help you?
I need to change my existing reservation, can you please help me?
Sure, I am here to help you for this. Let me check your reservation status in our database.
Thank you for kind response.
For changing the reservation, may I know your name please?
Myself Dennis Lee.
Please wait for a while.
Sure.
Sorry to intimate, no reservation is found with your criteria.
That's ok, thank you for searching my details.
Thank you very much for contacting our agency.