Hi, I am Helen Taylor.
user
Hello, Helen Taylor, how may I help you out?
assistant
I need to cancel my recent reservation for  postponing of my exams,Could you please help me in doing that?
user
Sure, we are here to help you. Please wait for a minute.
assistant
Sure.
user
Sorry for your inconvenience, we did not find any reservation based on your name.
assistant
No problem, Thank you for helping me?
user
It's my pleasure to help you.
assistant