Hi. I am Kathleen Roberts.
user
Hello, how may I aid you?
assistant
 Due to sudden change in my trip to another location, I would like to change my reservation. Can you please help me out?
user
Sure, please wait a moment.
assistant
Ok.
user
Sorry, there is no reservation found on your name.
assistant
Ok, no issues.
user
Thank you.
assistant
Thanks for the help.
user