Query to list all the responsibilities attached to a user

SELECT fu.user_name,
  fr.responsibility_name,
  furg.start_date,
  furg.end_date
FROM fnd_user_resp_groups_direct furg,
  fnd_user fu,
  fnd_responsibility_tl fr
WHERE upper(fu.user_name)  =upper(:user_name)
AND furg.user_id           = fu.user_id
AND furg.responsibility_id = fr.responsibility_id
AND fr.language            = userenv('lang');