Hello, I am Stephen Baker.
Hello, how may I amend you today?
 I want to cancel my recent reservation, because I want to travel  with my friends by road. Can you help me in this?
Sure, we are glad to help you.
Thank you.
Please wait for a while, I will check the reservation list and revert to you.
Sure.
Thank you for your time, we are sorry to inform you that, we did not find any reservation against your name.
It's ok, not a problem. Thank you for your information.
Thank you for reaching us. Have a good day.