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