Hi, salam Soumaya,
I am sorry for you!!!! How many were invited for the assessment day and which recruiters did you meet? Did you meet arab recruiters of Emirates???
Well it depends , we all dont know which kind of person they are looking for! They chosse us how they want!! Sometimes you have to be lucky, I remember when I was invited in 2006 when I was going and going and going through all stages, all the time reading "Congratulations, you have made it to the next stage....."! I saw brillant people who have been rejected and some who got the job where you would never imagine this!! Well it depends, if they like you the like you and if not, sayonara! Dont give up, try Etihad Airways or Qatar Airways! Keep us posted and good luck for the next time!