Hello. I am James Martin.
Hello, how may I aid you today from end?
Due to some problems, I have to change my previous flight ticket booking. Can you please help me in that one?
Sure, I am here to help you out. Please allow me a moment.
Thank you for accepting my request and I can wait for your response.
Sorry  James Martin, there is no reservation on your name in our database.
Oh! It may not be booked properly due to server issues. Anyway, thank you for your time.
Thank you for reaching us.