Hi.
Hello, how may I assist you?
Due to some sudden change in my schedule, I want your help to modify my existing reservation. Can you please help me with that?
Sure, please provide you name I will help you out?
My name is Brian Lopez.
Sorry Brian, there is no reservation found on your name.
That's ok, may be something went wrong while I was doing my reservation.
Yes, may be.
Anyways, thank you for your time.
My pleasure, thank you for reaching us.