"I came with my mistress." She sits her butt down on the ground, peering up at the much taller person. She's used to all the humans being much taller. Killian and Henry would be much taller to her. "And she needs someone who knows how to handle those." She means the sword, probably obviously, but while she does use human language to communicate she just lacks the physical abilities to add the nonverbal parts of it, and she spends a lot of her time with someone who is so worried about saying too much that she sometimes omits important information. And she's only been able to speak for a short while, it's still something that she is only learning to navigate.

There's also a hint of long-suffering tone in her voice that doesn't befit her age and makes her sound more like a child that way, but she feels that she's arranging for Siiri to talk to people a lot. Which is okay. She's starting to feel like it is her job as a good pet to get her mistress towards other people. That's what the dogs on TV do to, and in real life she's also observed it before.