Hello.
Hello, may I know your name, please?
Cynthia Smith here.
How may I provide assistance to you Cynthia Smith?
I need to change my existing reservation as my sister blessed with a baby before the expected delivery date. Please help me in changing?
Sure, we will help you. Ok, please wait a minute, let me check your reservation status in our database and get back to you.
Sure, I will wait.
Thank you for waiting. We could not find any reservation on your name in our database.
 Thank you for providing the information.
Thank you for communicating  with us, hope we serve you next time.