Hello.
user
Hello, how can I assist you today?
assistant
I am Ronald Edwards. I would like to change my existing reservation, due to examination schedule postponed. Can you please help me?
user
Sure, please wait for a moment.
assistant
Sure, take your own time.
user
Sorry to say that, no reservation was found with your good name.
assistant
That's ok, thank you for your information.
user
Thank you for reaching us.
assistant