Hi.
Hello, how may I help you today?
I need to travel in the middle of the month instead of  end of the month, hence I need your help to alter my recent reservation.
Sure, I am here to help you with this.
Can you please help me with that?
Ok. May I know your name please?
Michelle Green here.
Please wait for a moment.
Sure, take your time.
Sorry Green, there is no reservation found as per your name to alter your reservation in your database.
That's ok, thank you for checking.
You are welcome.