Bukkit plugin /fly

package me.jonas.main;

import org.bukkit.ChatColor;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.plugin.java.JavaPlugin;

public class fly extends JavaPlugin {

    @Override
    public void onEnable() {
        getLogger().info("Fly plugin has been Enabled");
    }

    @Override
    public void onDisable() {
        getLogger().info("Fly plugin has been Disabled");
    }

    public boolean onCommand(CommandSender sender, Command cmd, String commandLabel, String[] args) {
        if (!(sender instanceof Player)) {
            sender.sendMessage("Player command only");
            return true;
        }
        Player player = (Player)sender;
        // enable fly
        if(commandLabel.equalsIgnoreCase("efly")) {
            if(sender.hasPermission("fly.efly")) {
            player.setAllowFlight(true);
            player.sendMessage(ChatColor.GREEN + "Fly enabled");
            }else{
                player.sendMessage(ChatColor.RED + "You dont have permission");
            }
        }
        // disable fly
        if(commandLabel.equalsIgnoreCase("dfly")) {
            if(sender.hasPermission("fly.dfly")) {
            player.setAllowFlight(false);
            player.sendMessage(ChatColor.RED + "Fly Disabled");
            }else{
                player.sendMessage(ChatColor.RED + "You dont have permission");
            }
        }
        return true;
}
}