if(dialogid == DIALOG_MISSIONS)
    {
        if(response)
        {
            if(listitem == 0)
            {
                new vid=GetVehicleModel(GetPlayerVehicleID(playerid));
                if(vid == 561)
                {
                    CP[playerid] = 1;
                    SetPlayerCheckpoint(playerid, -2365.8149,1082.3146,55.2833, 7.0);
                    SendClientMessage(playerid, -1,"[Mission]: Sultan mission has started!");
                    SetVehiclePos(GetPlayerVehicleID(playerid), -2363.4282,1088.5339,55.2364);
                    SetVehicleZAngle(GetPlayerVehicleID(playerid), 158.3996);
                }
                else return SendClientMessage(playerid, -1,"[Mission]: You need Sultan for this mission!");
            }
        }
    }