Solved Right Click Player Event

Hello there!

I was wondering if someone could help with a part of my plugin. I am trying to make it so when a player right clicks another player with an Iron Sword it would send them flying backward. I am facing an issue tho. I do not know how to check if a player right clicked another player or if the player just right clicked the air/a block. This is my code:

Code:

package Kits;

import java.util.ArrayList;

import org.bukkit.ChatColor;
import org.bukkit.Material;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.block.Action;
import org.bukkit.event.player.PlayerInteractEvent;
import org.bukkit.inventory.Inventory;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.ItemMeta;

public class Falcon implements Listener {
   
    // Item Creation
    public static void createDisplay(ItemStack Material, Inventory inv, int Slot, String name, String lore)
    {
        ItemStack item = Material;
        ItemMeta meta = item.getItemMeta();
        meta.setDisplayName(name);
        ArrayList<String> Lore = new ArrayList<String>();
        Lore.add(lore);
        meta.setLore(Lore);
        item.setItemMeta(meta);
                
        inv.setItem(Slot, item);
    }
   
    public static void giveKit(Player player) {
        Inventory playerInv = player.getInventory();
        playerInv.clear();
       
        createDisplay(new ItemStack(Material.IRON_SWORD, 1), playerInv, 0, ChatColor.WHITE + "Iron Sword", ChatColor.DARK_PURPLE + "Right click a player to send them flying");
    }
   
    @EventHandler
    public void onPlayerInteract(PlayerInteractEvent event) {
        if (event.getAction().equals(Action.RIGHT_CLICK_AIR) || event.getAction().equals(Action.RIGHT_CLICK_BLOCK)) {
                if (//Checks if the player hit a person) {
               playerhit.flyback(bla bla bla);
                }
         }
    }
   
}