<!-- Display person's name -->
<div class="input-group">
        <span class="input-group-addon">Person Name</span>
        <input type="text" [(ngModel)]="selectedPerson.name" name="personName"  list="persons" required>
        <datalist id="persons">
            <option *ngFor='let p of person_list' value={‌{p.name}} selected>
                {‌{p.name}}
            </option>
        </datalist>
 </div>
<!-- Display age -->
<div class="input-group">
        <span class="input-group-addon">Age</span>
        <input type ="text"
                placeholder="Age"
                [(ngModel)]="selectdPerson.age"
                name="age" required>
</div>