We are pleased to welcome both Jimmy and Dylan to the Panthers," Tallon said in a statement.
"Jimmy is a young, strong, hardworking, versatile forward who brings both size and skill to our team. Dylan, a former first round draft pick, is a young, solid defenseman who adds further depth to our blue line. We thank Kris for his contributions to the Panthers, including helping us win the 2011-2012 Southeast Division Championship, and wish him the best of luck in his return to Chicago."
Hayes, 23, has played in 43 career NHL games with Chicago, scoring six goals with seven assists.
Olsen, 22 has played in 28 career games with Chicago. He has one assist.