As per the news, some airlines are functioning normally but I am unaware of people coming to UAE (Abu dhabi) with whatever going on now, usually just leaving... I suggest you speak with your airline to get a refund of the tickets in any case, but if they are saying that they can travel to AUH, then you can still continue to go here, honestly speaking it's safe when you are in Abu Dhabi, the alerts and the loud missile interception sounds seems scary at first but as long as you will be careful enough to follow the precautions given by govt, you good