Hello.
user
Hello. May I know your good name please?
assistant
 My name is Scott Allen.
user
How can I help you for today?
assistant
Actually my examination is postponed, so I need to change my existing reservation. Can you please help me to change the reservation?
user
Sure, please give me a second.
assistant
Ok.
user
Thanks for waiting. Sorry, there is no existing reservation on your name.
assistant
Its ok, thank you.
user
Thank you for choosing us. Have a good day.
assistant
Thank you.
user