Hi.
Hello.
I am Nicole Johnson.
How may I help you today?
 I just want to change an existing reservation as my meeting got post pone due to some technical issues. Can you help me?
Sure, I'll help you in changing an existing reservation.
Thank you.
Please wait a moment I'll check the reservation list.
Ok.
Thank you for waiting, no reservation was found on your name in our database.
No issue. Thank you.
Thank you for availing us.