Hello. I am Joshua Collins.
user
Hello, how can I serve you?
assistant
I want to change my existing reservation due to Live concert schedule was postponed. Can you please help me to change reservation?
user
Sure, please wait a moment.
assistant
Sure.
user
Thanks for waiting, there is no reservation found with your name.
assistant
Ok, no problem.
user
Thank you.
assistant
Thanks for the information.
user