Pass form data through url by setting in route

I have set a route in my Laravel project, if it was with href I would have done it like this but now I want to pass in the form data as the $country_from and $country_to please how can I do this

<form action="">
            @csrf
                        <input type="text"
                            class="search-form flexdatalist"
                            name="origin"
                            placeholder="country_from"
                            data-search-in='name'
                            data-min-length='1'
                            />


                        <img src="" class="search-icon origin" width="28px" height="21px"/>
                    </div>
                    <div class=" col-md-3 mx-0 px-0">
                           <input type="text"
                                class="search-form flexdatalist"
                                name="country_to"
                                data-search-in='name'
                                data-min-length='1'
                                placeholder="Travelling to"

                            />
                            <img src="" class="search-icon destination" width="28px" height="21px"/>
                    </div>
                    <div class="col-md-3 mx-0 px-0">
                    <input type="text"
                                class="search-form flexdatalist"
                                name="residence"
                                data-search-in='name'
                                data-min-length='1'
                                placeholder="Residing In"

                            />
                            <img src="" class="search-icon residence" width="28px" height="21px"/>
                    </div>
                    <div class="col-md-3 px-0">
                        <input type="submit" value="Search Visas" class="btn btn-primary search-btn"/>
                        </form>

Route

Route::get('/{country_from}/{country_to}',  'DestinationCountriesController@index')->name('destination');

via Chebli Mohamed