Answer: Kann ich dich bei den Kleidern helfen?
Translation: Can I help you with the clothes?
Explanation: 'Dich' translates to (a friendlier less formal) 'you'.
'Ihnen' translates to 'them'.
(In this context,) 'Dem' translates to 'him'.
(In this context,) 'Der' translates to 'her'.
It could be any of these depending on the story, but 'dich' fits the best.
