Hi.
Hello, how may I help you now?
I am Robert Turner. I need to change my existing reservation, Can you please help me with that?
Sure, I will help you to change your reservation. Please wait for a moment, while I check for reservation.
Sure.
Thank you for waiting, sorry there is no reservation found on your name.
Ok, no problem. Thanks for your information.
Thank you for visiting us, we hope see you again.