Hi,.
Hello. How may I render you today?
I am Rebecca Hernandez.
Ok.
Please, help me in cancelling my reservation.
Sure.
Thank you.
Please wait for a while, I will revert to you.
Sure.
Thanks for waiting.
Ok.
But we are sorry to inform you that, no reservation is existed previously to proceed further.
Ok, thak you for  information.
Thank you.