Hello.
Hello, how can I help you today?
I want to change my existing reservation, can you please help me with this?
Sure, I will help you with that. Please mention your good name?
I am Andrew Mitchell.
Please wait for a moment, while I check for the reservation.
Sure.
Thank you for waiting, sorry there is no reservation found on your name on our system data.
Ok, no problem. Thank you for your information.
Thank you for visiting us, we hope see you again.