[speaker001:] Hello.
[speaker002:] Hello. May I know your good name please?
[speaker001:] I am Carol Green.
[speaker002:] Ok Carol, how can I help you?
[speaker001:] Due to some reasons my trip has been postponed, so I want change my existing reservation, can you please help me?
[speaker002:] Sure, please give me a second.
[speaker001:] Ok.
[speaker002:] Sorry, there is no existing reservation on your name.
[speaker001:] Thank you for your service.
[speaker002:] You are welcome.