Time is just a river that never looks back (hunger games)

Hunger Games characters are transported through time. Is it a second chance? After Katniss assassinated Coin, Peeta was a heartbeat too late when Katniss ate her night lock in a swift motion. A chance to undo the irreversible is granted but a few turning points occur for when the characters are transported back in time, they all get put at different points in time. How can you communicate to someone who's oblivious?

"In a heartbeat, I move my bow, swiftly realising the slim arrow. It flies through the sky, whistling in the wind as fast as fast as light. The sun's seductive glare gleams across the shiny tip as it pierces Coin's heart. A pool of blood oozes from her chest, covering her like a blanket of death. The crowd, stunned with shock, recovers quickly, turning into an angry stampede of elephants. The elephants roar and in a second Snow's body is nothing more than a bloody pulp. With Coin and Snow gone, Panem will have to find a new President. I feel a small smile tug at my lips, mission accomplished."

this is a repost from A03