Hi. I am Debra Nelson.
user
Hello, how can I assist you for the day?
assistant
I want to change my existing reservation as my trip got rescheduled. Please help me.
user
Sure, I am here to help you.
assistant
Thank you.
user
Please wait for a moment.
assistant
Ok.
user
Sorry, we found no reservation on your given name.
assistant
No issues, thanks for the help.
user
Thank you for reaching us.
assistant