The gate agents in JFK are useless. In october before I got kicked to the curb I had to deadhead from JFK back to CVG. So check in at ther service desk they say a seat hasn't been assigned to me the gate will do it. So at the gate there were about 5 people deadheading and nobody had an assigned seat. So they board the flight and then tell us we aren't getting on because we don't have seats assigned even though we are positive space. They didn't care we were positive space and were blowing us off. One of the guys there got stuck in jfk the night before so was junior for the deadhead so he was calling everybody got to the customer service manager in the GO who called the ramp tower and said we had to get on. Then the phone rang at the gate and then they put us on. They do what they want unless you go to managers.