Hi. I am David Taylor.
Hello, how can I assist you?
 I want to cancel my recent reservation, because I want to travel  with my friends by road. Can you help me with it please?
Sure, we are here to assist you.
Thank you.
May I know your name?
I have mentioned above.
Ok, please wait for a while.
Ok.
Thank you for waiting, There was no reservation found on your name.
That's ok.
Thank you for approaching us.
Thank you for the response.
Have a nice day.