Hello.
user
Hello. How may I help you?
assistant
I would like to change my existing reservation due to postpone of my live concert. Can you please help me?
user
Sure, may I know your name?
assistant
I am Sharon Robinson.
user
Ok, please wait.
assistant
Sure.
user
Sorry, there is no active reservation found under your name in our records.
assistant
No worries, thank you for the information.
user
Most welcome.
assistant