Why not work ngif else

Ionic Framework ionic-v3
1

html code

<div *ngFor="let arac of koltukSayisi;let i=index">
              <ion-item ion-item *ngIf="i==2 || i==4"></ion-item>
              <div *ngFor="let rez of rezervasyonlar">
                <div *ngIf="i+2==rez.kid;else bosKoltuk">
                
                    <button ion-button large style="float:left;padding-left: 20px!important;padding-right: 20px!important;">{{i+2}} DOLU</button>
                  
                </div>
                
                <ng-template #bosKoltuk>
                
            
                
             <button ion-button large style="float:left;padding-left: 20px!important;padding-right: 20px!important;">{{i+2}} BOŞ</button>
            
            </ng-template> 
          
          
            </div>
</div>

result page

Ads%C4%B1z