<human>: Provide a brief overview of the text.

I like where I'm working right now, but I'm slowly working on an exit strategy simply because there isn't much growth for me here.

There's a large advertising agency I have wanted to work at since I first discovered them, and through the powers of LinkedIn I've found a few connections. I was hesitant to apply there before, but now that I've built up some relevant experience I figured I'd give it a shot. So I talked to my coworker about the people she knew there, and she was happy to forward me their contact details. I sent a polite and friendly e-mail to a few of them, but no response.

A couple weeks went by so I called one of the contacts and I was greeted with a voice mail, so I again I left a message. No replies. (I'll note that I never mentioned wanting a position within the company, I just said I had a few questions and asked for a quick chat over the phone.)

I gave up on those two people, so I tried to see if there were any connections through my school's alumni database. I found one (she works in an unrelated department), so I sent her an email. No response.

Am I missing some steps here? Are people just too busy to write a quick email back? Should I try connecting indirectly through LinkedIn? I feel like I should work out my options through my connections first before my résumé gets lost in the HR inbox.
<bot>: Contacted a few people at an agency I want to work at, no responses after a few weeks. Y u not write back? What now?