Hello.
Hello. How can I help you?
 Actually I made a earlier reservation to go for a trip with my friends, but due to heavy work load in office I want to change my reservation. Can you help me in changing my reservation?
      Sure, I am here to help you.
Thank you.
May I know your name please?
My name is Linda Wilson.
Ok, wait a minute please.
Sure.
Thank you for waiting, sorry to say no reservation found on your name.
No problem.
Thank you for reaching us, have a nice day.