so#43391089

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  selectedService: [],
  
  services: [{name:'First Service'},{name: 'Second Service'},{name: 'Third Service'}],
  
  actions: {
    setValue(ser){
      this.get('selectedService').pushObject(ser);
    }
  }
});

templates.application.hbs

<div class="panel-body">
    <div class="form-group">
      <select name="services" id="services" class="form-control" onchange={{action 'setValue' value="target.value"}}>
          <option> Select Services </option>
        {{#each services as |service|}}
          <option value="{{service.name}}">{{service.name}}</option>
        {{/each}}
      </select>
    </div>
    <div class="form-group">
      {{#each selectedService as |selection index|}}
        <span class="label label-primary">{{index}} {{selection}}</span>
        <br>
      {{/each}}
    </div>
  </div>

twiddle.json

{
  "version": "0.12.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.12.0",
    "ember-template-compiler": "2.12.0",
    "ember-testing": "2.12.0"
  },
  "addons": {
    "ember-data": "2.12.1"
  }
}