Hello.
Hello. How can I help you?
I want to change an existing reservation, so please help me in changing the reservation.
Sure, I will help you to change your reservation.
Thank you.
Ok, please mention your name.
Myself Dorothy Robinson.
Please give me a moment.
Ok.
Sorry, no reservation found on your name to change your reservation.
Not an issue. Thank you.
Welcome, have a nice day.