Hello.
user
Hello. How may I help you?
assistant
I am Kathleen Harris. I am planning to change my existing reservation, due to health issue.
user
Ok, please wait a moment I revert you back with the preferable information.
assistant
Can you please change my ticket? Sure.
user
Thanks for your time, there is no reservation found under your name to change it.
assistant
That' s fine. Thank you for your service.
user
My pleasure.
assistant