Hello.
user
Hello, how may I help you?
assistant
Ronald Campbell here. I would like to change my reservation as my exams postponed to some other dates, can you please help me with that?
user
Sure, I will help you. Please wait for a moment. Sorry, there is no reservation existing on your name.
assistant
That's ok, no problem. Thank you for the information.
user
You are welcome, have a nice day.
assistant