@Sateesh11 

reference qualifier on seating arrangement field

new scriptInclude().checkData(current.u_location);

Script include :

checkData: function(location) 

{ 

var locationID= location;  

var gr=new GlideRecord("u_seating");

gr.addQuery("u_location",locationID);

gr.query();

var arr=[];

while(gr.next())

{

arr.push( gr.sys_id.toString());

}

 return 'sys_idIN'+arr.join(',');

};