Hello, I am Anna Lee.
user
Hello, How could I be your helping hand today?
assistant
I want to change my existing reservation. As I could not finish my work in time as per my schedule. Can you please help me in this?
user
Sure, I am glad to help you. Please wait for some time, I will check with your existing reservation and get back to you.
assistant
Sure.
user
Thank you for your patience, There is no existing reservation found on your name.
assistant
That's ok, not a problem.
user
Thank you for opting us to change your reservation.
assistant
Thank you for your assistance.
user