Hello.
Hello. How can I assist you?
I want to change my existing reservation. Will you please help me in changing?
Sure, I am ready to help you. May I know your name please?
My name is Kathleen Lewis.
Thank you, can you please wait for a minute.
Sure.
Sorry to tell you, I cannot find any flight reservation with your details.
Oh! it's OK.
Thank you Kathleen Lewis.