Hi.
user
Hello, how may I help you today?
assistant
I want to change an existing reservation due to sudden change in my trip. Can you help me?
user
Sure, May I know your good name please?
assistant
I am Karen Jackson.
user
Please wait for a while, I will check and get back to you.
assistant
Ok.
user
Sorry, there is no reservation found on your given name.
assistant
No issue. Thank you.
user
Thanks for choosing us.
assistant