Bound states in the continuum is possible in the acoustoelastic coupling

Let's imagine a hypothetical scenario where two individuals are gripping a rope, each holding one end. Person A proceeds to shake the rope in an up-and-down motion, thus generating a propagating wave that travels towards person B. Now, if person C, positioned between person A and B, engages in a comparable frequency of waving motion as that of the rope's wave, could the wave be redirected back to person A rather than reaching person B?