Importance of Dua in Umrah and Prayer

It is seen that many people complain that there Duas do not get any answer from Allah Almighty and they get dishearten. Sometimes people get disappointed to such an extent that they even stop making Dua and keep saying that there is no point of making any further Dua because Allah do not listen to it. This is a completely wrong behavior. Allah listens to each single word of your Dua but He has made his own plans. He almighty knows that when He should make the Dua come. There is a certain time period set for each single thing and whatever Allah has chosen for us, is for our own benefit.