Иван

<div class="container">
       <div id="inputText">
         <button class="btn btn-info">Start Travel</button>
          <input class="form-control">
          <input class="form-control">
          <input class="form-control">
           <button onclick="f1()" class="btn btn-info">Add Traveler</button>
           </div>
           <div id="out">
               
           </div>
   
    </div>

function f1(){
   
 var out = document.getElementById('out');
 var clonningEl = document.querySelector('#inputText').cloneNode(true);
out.appendChild(clonningEl);

 }

<article id="Assembly">
  <section class="AssemblyHeader">
    <div class="AssemblyName">
      <h1 class="AssemblyName__title">EvilBeasts Ultimate Performance</h1>			
    </div>
  </section>
</article>

.AssemblyName__title{
color:red;
}