Hello.
user
Hello, how can I help you?
assistant
I am Thomas Carter. I need to change my existing reservation, Can you help me for change my reservation please?
user
Sure, please wait for a moment, I will check the existing reservation on your name.
assistant
Sure.
user
Thank you for waiting, There is no reservation found on your specified name.
assistant
Ok, no issues. Thanks for your information.
user
Thank you for approaching us.
assistant