Display a text message if the field is not found and not if found

Are you just looking for a simple if then statement? Assuming that your fields are set up properly, then this code should work:

<?php 
    $user_ID = get_current_user_id(); 
    $label="user_" . $user_ID;

    if (get_field('Information', $label)) {
      //there is data;
    } else { 
      echo 'Sorry no information here';
    }
?>