I'm developing a automation that needs to access the first (and only one) dropdown value. I want to get this "Unavailable date" value to do a validation in the future. This is the HTML:

```
<div class = "content-box-wrapper">
    <fieldset>
        <li>
            <label>Select a time</label>

            <div>
                <select name = "idAgenda" id="hourSelected">
                    <option value>Unavailable date</option>
                </select>
            </div>
        </li>
    </fieldset>    
</div> 

```