Hello.
user
Hello. How may I help you?
assistant
Actually my Tennis level-5 competition is postponed so that I want to change an existing reservation, can you help me?
user
May I know your name?
assistant
Sure, I am Donna Anderson.
user
Sorry, no reservation found with your name.
assistant
Ok, no problem. Anyway thank you for your information.
user
Thank you for choosing us.
assistant