Sunrise Hoterl HTML Template set not avilable dates

I need customer support on following:
how to add on daterangepicker and datepicker not available dates?
here is the section of ribbon Check-in -> Check-out

  <div class="container">
        <div class="sc-hb-rooms-search style-01">
            <div class="hotel-booking-search style-01">
                <form action="rooms-search.html" class="hb-search-form">
                    <ul class="hb-form-table">
                            <input type="text" id="multidate" class="multidate" value="" data-date-min="6" />
                        <li class="hb-form-field hb-form-check-in">
                            <div class="label">Check-In</div>
                            <div class="hb-form-field-input hb_input_field">
                                <input type="text" id="day" class="day" value="" style="width: 68px;" />
                                <input id="month" class="month" type="text" value="" />
                                <input type="hidden" name="check_in_date" id="check_in_date" class="check-date hasDatepicker" value="" />

                        <li class="hb-form-field hb-form-check-out">
                            <div class="label">Check-Out</div>
                            <div class="hb-form-field-input hb_input_field">
                                <input type="text" id="day2" class="day" value="" style="width: 83px;" />
                                <input id="month2" class="month" type="text" value="" />
                                <input type="hidden" name="check_out_date" id="check_out_date" class="check-date hasDatepicker" value="" />

                        <li class="hb-form-field hb-form-number">
                            <div class="label">Number</div>
                            <div id="guests" class="hb-form-field-input hb_input_field">
                                <input type="text" id="number" class="day" value="01" />
                                <input class="month" type="text" value="Guests" />
                            <div class="hb-form-field-list">
                                <div class="hb-form-field-input hb-guest-field">
                                    <select name="adults_capacity" tabindex="-1" aria-hidden="true">
                                        <option value="47">1</option>
                                        <option value="45">2</option>
                                        <option value="56">3</option>
                                        <option value="57">4</option>
                                        <option value="58">5</option>
                                        <option value="59">6</option>
                                        <option value="60">7</option>
                                        <option value="61">8</option>
                                        <option value="62">9</option>
                                    <span class="name">Guests</span>
                                    <span class="number-icons goUp"><i class="ion-plus"></i></span>
                                    <span class="number-icons goDown"><i class="ion-minus"></i></span>

                    <p class="hb-submit">
                        <span class="contact-info">Need Help: <span>(+12) 34-567-89</span></span>
                        <button type="submit">Check Availability</button>

I am trying into theme-customs.js to add to options where is initialization occurs something like this with some dates:
$(’#multidate, #multidate2’).daterangepicker({
datesDisabled: [“03/15/2019”, “03/28/2019”, “03/02/2019”, “04/23/2019”],
parentEl: “ .hb-form-table”,
minDate: date_min,
autoclose: true,
autoApply: true

but nothing happens…thanks


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