[Yes, Sebastian might have noticed something off already in the morning when Korra arrived - she usually has so much energy and enthusiasm, after all, and Sebastian appreciates how useful she is for the physically heavy tasks. Yet, as long as she does her job, what does he care whether she's down or not? However... he looks at her a moment before answering, evaluating.]
Very good, miss Korra. There are a few options - would you like a rest and do something less heavy? If so, the herb gardens requires weeding again.