Hello, myself Nicholas Smith.
user
Hello, how may I assist you today?
assistant
I want to change my existing reservation, as my exam scheduled got postponed. Could you please help me in changing?
user
Sure, I am here to help you. Please wait for some time.
assistant
Ok.
user
Thanks for waiting. Sorry, there is no reservation found on your name in our data base.
assistant
Ok, no issues. Thank you for your help.
user
Thank you for reaching us.
assistant