How to use two models in a controller

Hello everyone, this is about codeigniter 4.

I wanta use two models in a controller. But I have no idea how to solve it. Any suggestion for me please ? 

PHP Code:

<?php namespace App\Controllers;

use CodeIgniter\HTTP\IncomingRequest;
use CodeIgniter\Controller;
use App\Models\CompanyModel;
use App\Models\AuthenticationModel;

class Login extends BaseController
{   
    protected $request;
    protected $companyModel;
    protected $authenticationModel;
    
    public function __construct()
    {
        // Call the Model constructor
        $this->request = service('request');
        $this->companyModel = new CompanyModel();
    }

    public function index()
    {
        $data = [
            'name' => $this->companyModel->name()
        ];

        echo view('authentication', $data);
    }

    public function process()
    {
        
        $this->authenticationModel = new AuthenticationModel();
        $username = $this->request->getPost('username');
        $password = $this->request->getPost('password');

        $boolen = $this->authenticationModel->authentication($username, $password);

        return $boolen;
    }
}