Hello.
user
Hello. How can I help you today?
assistant
I am Lisa Mitchell. I want to change my existing reservation, can you please help me with this?
user
Sure, I am gleeful to help you to change your reservation.
assistant
Thank you.
user
Please wait a moment.
assistant
Ok.
user
Sorry, no reservation found on your name to change your reservation.
assistant
Ok, no problem. Thanks for your information.
user
Thank you for opting us, have a nice day.
assistant