Hello.
user
Hello. How can I help you?
assistant
I want to change my existing reservation. Could you help me with that?
user
Sure, I am here to help you. May I know your name please?
assistant
Thank you. Christopher Wilson here.
user
Ok, please stand by.
assistant
Sure.
user
Thank you for waiting, sorry we didn't find any reservation on your name.
assistant
That's ok, no problem. Thank you.
user
Thank you for reaching us, have a nice day.
assistant