<input type="hidden" name="return_url" value="{{ url('dashboard_attendee_order_details', { 'reference': paymentDetails.orderReference }) }}">
<input type="hidden" name="cancel_url" value="{{ url('dashboard_attendee_checkout_payhere_failure') }}">
<input type="hidden" name="notify_url" value="{{ url('dashboard_attendee_checkout_payhere_done') }}">

you can put the url as this or

<input type="hidden" name="return_url" value="https://<your-domain>/en/dashboard/attendee/my-tickets/568944414af3b06?order_id=568944414af3b06">