Hi.
user
Hello. How may I aid you?
assistant
I want to change an existing reservation due to sudden change in my trip.
user
Give me a moment, let me check your details.
assistant
Ok.
user
May I know your name please?
assistant
I am Rebecca Davis.
user
Sorry Davis, I didn't found any reservation basis on your details.
assistant
No issue. Thank you for your response.
user
Most welcome.
assistant