Hi.
Hello.
Can you please help me in changing my existing reservation?
Sure, I will help you with changing, please hold on for a moment to check your reservation status. May I know your name please?
Ok, I have reserved my flight ticket with name Shirley Wright.
Shirley, there is no any active reservation with your name in my database.
Ok, fine thank you for checking.
It's my pleasure, have a nice day.