I'd maybe wait on this until the dust settles from the New Year. Maybe the person is just on an extended vacation.

That said, when I was a rep, I always tried to jump on new contacts right away, especially when they're seeking you out.

You may want to try posting a message with their program name it, someone else in the company will probably have their own prog name boardtracked. They may show up and shed some light on the no response.

Michael