Hello.
user
Hello, how can I assist you?
assistant
I am Ryan Williams. I would like to change my existing reservation, due to examination schedule postponed. Can you please help me?
user
Sure, I will help you. Please wait for a moment.
assistant
Sure, take your own time.
user
Thanks for waiting, there is no reservation found on your name.
assistant
That's ok, thank you for checking.
user
Thank you for choosing us.
assistant