Hello.
Hello, how can I address you today?
 I am Stephen Lopez want to cancel my reservation due to prepone of my exams. Can you help me in cancelling?
Sure, we are here to help you.
Thank you.
Ok, wait for a while I will check the reservations on your name and get back to you.
Ok.
Thanks for waiting . There is no reservation found on your name.
Ok, thank you for your response.
Thanks for contacting us.