How To Refine The Query In Yii?

I have 2 tables:

USER id, name, surname

UserUser u_id1, u_id2, date, status

I have here is a model in action USER:

public function getUsers($status)


    return $this->hasMany(UserUser::className(), ['u_id1' => 'id'])

        ->where(['status' => $status]);


But I need to add the ability to search ‘name’, ‘surname’ of the table User, if I add a WHERE or Like, writes an error that the table UserUser such columns (name, surname) not found? How do I add these two values ​​to search or return value? I use Yii2.