Hi. I am Jennifer Scott.
user
Hello. How can I aid you?
assistant
I just want to cancel my recent reservation, My tennis match has been preponed. Will you please assist me?
user
OK, please wait.
assistant
Sure.
user
 Sorry, no reservation was found on your name.
assistant
Ok, no issues.
user
 Thank you for opting us.
assistant
Thank you for your service.
user