Hello, myself Sharon Hill.
user
Hello, how can I help you?
assistant
I want to change my departure day in my existing reservation, could you mind help me in changing?
user
Sure, please wait for a while.
assistant
Ok, I will wait for your response.
user
Sorry, there is no reservation found by your name.
assistant
That's ok, thank you for the information.
user
Thank you and have a nice day.
assistant