Hello.
Hello, how can I serve you today?
 I want to change my reservation as I have booked my ticket with wrong dates, please help me out.
Sure, I will help you with that. May I know your name?
I am Brandon Jones.
Please wait for a while.
Sure.
Thanks for waiting, there is no active reservation found on your name.
That's ok. Thank you.
Thank you for availing us.