Hello, unfortunately can't help you out as far as the info goes regarding salaries for reservations supervisor however do know that english teachers can avrg between 1800-2300(accomadation incl)for first time placements. For your specific positon there is probaly only 2-3 hotels that would require any thing like that, try contacting them direct. Erbil Rotana, or Erbil International Hotel.
There are European, North American and South African Expats here as well. The problem is that it takes a bit to get to know people here, there is no real central place for expats and little infrastructure to organize gatherings. Hence signing up to this site, still few people on here that live locally though. Anyways, rambling a bit, hope the info helps.