He listens, asking questions, and not paying any mind to the time.
When Lavender would wind down (even if only due to talking her throat dry, he nods.
"I will accept your offer. You may serve as my sworn sword. However, I would have you know that as well, you shall serve as my eyes and ears. It is fitting for a Baron of Ailil to keep close watch over his..." A pause. Enemies? Foes? Nemeses?
Finally he settles on, "...Rivals. You will visit the Baronial holding of Rivervale often as befits your status as confederate of Dame Dagmar, and as suits your Joust practices. I will expect you to report back to me on what transpires there, and any gossip, news, or pertinent activities."
A pause, and he clarifies, "With your judgement as to what shall be of more import to me. After all, I do not have time for tedium, minutia or trivial details." Important to him, he emphasizes. Not, perhaps, to House Ailil?
"Would that suit you, Dame Lavender D'Lorean?"