I don't know how much you know about this type of casino, whether you've done any homework, and I have no idea about anything in the Miami area, which is a little more than an hour from Tulsa and probably three to four hours from Oklahoma City.
Also consider that the casinos are not privately owned, but owned by Native American tribes and so have certain hiring procedures that require them to hire a certain percentage of Native Americans. You might find after a short amount of time that you've become a bingo caller rather than a dealer.
As a dealer, you should understand that games in Oklahoma casinos are not necessarily Vegas style, like they are in Tunica.