Read the query. “This sounds obvious, but it bears repeating,” Margot Carmichael Lester, who is familiar with ProfNet both as a PR professional and a freelance writer. “When I submit a query, I can't tell you how many query responses I get from people who aren't even close to being a relevant source. If the reporter bothers to mention the type of source s/he's looking for, respect that and don't respond if you aren't selling what's needed. It’s a waste of every one's time.”
If you send an irrelevant response the reporter will write you off and then you won’t be able to place stories when you have something newsy.