Hello.
user
Hello, how may I help you today?
assistant
I am Karen Jackson. I want to change my existing reservation due to bad weather condition, can you please help me with that?
user
Sure, I am here to help you.
assistant
Thank you.
user
Sorry Karen, there is no reservation found as per your name to change it.
assistant
Ok, no problem. Thank you.
user
You are welcome.
assistant