[speaker001:] Mary, this company is pretty good. I really want to have an interview.
[speaker002:] Have you made an appointment with this company?
[speaker001:] Not yet. Do I have to?
[speaker002:] Yes, it's very important to make an appointment before the interview.
[speaker001:] Why?
[speaker002:] If you go to the company without appointment, the interviewers may happen to be busy with other things, and have no time to give you an interview.
[speaker001:] Yes, you are right.
[speaker002:] If the interviewers are not in the company, you will go there for nothing.
[speaker001:] Sure. Why didn't I think of that?
[speaker002:] So you should make an appointment in advance with the company for the interview.
[speaker001:] Then how can I make the appointment?
[speaker002:] You could directly call the company and arrange the time and place for the interview.
[speaker001:] Ok, I see.
[speaker002:] If you succeed in doing that, you must attend the interview on time.