Hi.
Hello, How can I assist you?
Owing to an emergency I want to cancel my recent reservation. Could you help me out?
Sure, may I have your good name? please.
Reservation is done with my name Brandon Brown.
Please wait for a while,  I will revert to you.
Sure.
Thanks for being patient but, no reservation is existed with your name.
Ok, not a problem. Thank you.
Thanks for reaching us.