Hello.
user
Hello, how may I help you?
assistant
I want to change my reservation. Can you help me?
user
Sure, I can help you. can I know your name for checking?
assistant
I am Kimberly Clark.
user
Sorry Clark, there is no reservation found on your name to change it.
assistant
It's ok, thank you for checking.
user
Thank you for reaching us , have a nice day.
assistant