Hello.
user
Hello. How may I aid you today?
assistant
I am Samantha Lee. I would like to change my existing flight ticket. Could you please help me out?
user
Sure, please hold on for a moment, let me check.
assistant
Sure, please take your time.
user
I am sorry, there are no reservations with your name.
assistant
Ok, no problem. Thank you for the information.
user
Thank you, have a good day.
assistant