Hi, I am Larry Parker.
user
Hello, how may I assist  you?
assistant
My trip for visitation has been postponed, can you please change my reservation?
user
Sure, please wait for a while.
assistant
Ok.
user
Sorry there is no reservation found on your name.
assistant
Ok, no problem.
user
Thank you for reaching us, have a pleasant day.
assistant
Thank you for your response.
user