Hi, I am Robert Johnson.
Hello, by what way may I aid you now?
As my plan to go for a holiday trip got postponed, I need to change my earlier reservation.
Ok.
Will you help me with that?
Sure, I will help you.
Thank you.
Thanks for waiting. Sorry, we found that there was no reservation on your name.
Ok.
Thank you for opting us.
Thanks for the information.
Have a pleasant day.