Hello, I am Karen Smith.
user
Hello, how may I serve you today?
assistant
Owing to an emergency I want to change my existing reservation, can you please help me with that?
user
Sure, please wait I will get back to you.
assistant
Sure.
user
Thanks for waiting, we have not found any reservation with your given name.
assistant
Ok, no issues. Thanks for your information.
user
Thank you for choosing us.
assistant