parse query help? tried everywhere no result

   override func viewDidLoad() {
        super.viewDidLoad()
       
       
        let query = PFQuery(className:"reservedCust")
        query.findObjectsInBackgroundWithBlock {
           
            (objects, error) -> Void in
           
            if error == nil {
               
               
                if let objects = objects {
                   
                    for object in objects {
                       
                       
                        if let item = object["item"] as? String {
                           
                            self.itemList.append((object["item"] as? String)!)
                           
                        }
                       
                      
                       
                    }
                   
                   
                }
               
                print(self.itemList)
                self.tableView.reloadData()
               
               
            }else {
               
            }
        }
       
    }

so this is my code . this returns all the items in my "item" column of parse for class"reservedCust". I have another class "reservedList" which has "userid" i would like to retrieve the "item" accoring to the "userid"

parse query help? tried everywhere no result
 
 
Q