How to show title in get_post_meta, not ID

Hi, in my code below, I am echoing $session which outputs the ID of the conference_stream1, I would like to show the name of this, not the ID?!

add_filter('manage_session_posts_columns', 'session_date_head');
function session_date_head($columns) {

	unset(
		$columns['author'],
		$columns['date'],
		$columns['comments']

	);

    $new_columns = array(
		'session_date' => __('Session Date / Time', 'session_date'),
		'conference_stream1' => __('Conference Stream', 'conference_stream1'),
	);

    return array_merge($columns, $new_columns);

    //return $defaults;
}

// Display session details
add_action('manage_session_posts_custom_column', 'session_event', 10, 2);

function session_event($column_name, $post_ID) {

	global $wpdb;
    switch ($column_name) {

    case 'conference_stream1':

    	$sessions = (get_post_meta($post_ID, "conference_stream1", true));
			echo $sessions.'<br/>';
    	foreach ($sessions as $session) {

    		$seminar_session_stream = get_field('seminar_session_stream');
			$conference_steams_obj = get_field_object('conference_stream1');
			//var_dump($conference_steams_obj['choices']); var_dump($session);
			$ex_seminar_stream = $conference_steams_obj['choices'][$session];

			echo $conference_steams_obj.'<br/>';
    	}

    break;

    case 'session_date':

    	$date = (get_post_meta($post_ID, "session_date", true));

    	echo '<strong>Date: </strong>'. date("d-m-Y", strtotime($date)).'<br/> ';
    	echo '<strong>From: </strong>'. get_post_meta($post_ID, "start_time", true).' ';
    	echo '<strong>To: </strong>'. get_post_meta($post_ID, "end_time", true);
    break;
    default:
    	break;
	}
}