Please help!!!!!!Unexpected question by Fly Emirates HR

Hello and Salams to all,

Recently I've received an email from Emirates for a job that I did not apply for. They wanted to know how much I want a month, or my expected salary, and if the suggested salar meet their range then they will interview. I have no clue how much I should ask for. Job tittle is - Security Coordinato​r (Investiga​tions)
Im currently in Australia and hold NZ passport. Also do speak Arabic.

Please help!!!!

Best you do an online search. Type in 'salary range for airport security' and see what comes up.

Or phone a security firm.

Thanks mate. I came to expat-blog after I did my home work. Google didn't come up with What im looking for, and comparing salaries of jobs in different countries is not accurate or helfpul at all. This job is about investigation but with the securit group. Added to this is the coordination element. ITS WITH Emirates.