<|start_header_id|>system<|end_header_id|>

<?=$system_root_message?><|eot_id|>
<?php foreach($messages as $i => $message) : ?>
<|start_header_id|><?=($i%2==0?"user":"assistant")?><|end_header_id|>
<?=$message?>
<|eot_id|>
<?php endforeach;?>
<|start_header_id|>assistant<|end_header_id|>