OK, so you want to write for a news organization.
You've got your goal in sight. Now, there are a series of steps you'll have to take to make that goal a reality.
Chances are, however, that you will hear back from an editor and they'll let you know whether they're looking for freelancers. If they are, and most news organizations are, they might invite you in to meet with them for an interview. This would involve bringing your resume, some writing samples and looking as professional as you would for any other interview. But most likely, if they think you're halfway competent, they may give you an assignment right off the bat.