Hi.
user
Hello. How can I serve you?
assistant
I would like to change my existing reservation as my appointment with my lawyer got postponed. Can you help me with that?
user
Sure, we are glad to help you out. May I know your good name?
assistant
Sure, I am Nicholas Anderson.
user
Thanks for providing me your information. We didn't found any reservation by this name.
assistant
Ok, thank you for the information.
user
Thank you for choosing us.
assistant