JSFiddle - React, Tailwind, and code Playground

HTML

<select name="estado" class="selectpicker" data-dropup-auto="false" onchange="this.form.submit()" data-style="btn-danger">
    <option value="0">Disponible</option>
    <option value="1">Contratado</option>
    <option value="2" data-toogle="popover">No disponible</option>
</select>

JavaScript

$(function () {
var pop = $('[data-toggle="popover"]').popover({
  html:true,
  trigger: 'manual',
  content: function(){
    return 
    	"<form name='statusForm'>"+
      	"<div class='form-group'>"+
      		"<textarea class='form-control' name='estado' placeholder='Motivo de la no-disponibilidad' required></textarea>"+
      	"</div>"+
      	"<button class='button btn btn-success' type='button'>Aceptar</button>"+
      	"<button class='button btn btn-success' type='button' >Cancelar</button>"+
      "</form>"
    }});  
            });