<select class="niceSelect" id="guest">
                                                <option value="1">Expected no of guests</option>
                                                <option value="2">0-50</option>
                                                <option value="3">50-100</option>
                                                <option value="4">100-500</option>
                                                <option value="5">500-1000</option>
                                            </select>          
                                   <span id="spGuest" style="color: red;"></span>

  $('#guest').on('change', function () {
            $('#spGuest').empty();
        });