Crystal
She didn't respond again, but did mimic the name back to Sleet, before glancing at her brother. She was unsure in this moment, the last adults they trusted besides their parents had killed their parents, so she was reasonably wary. But being able to interact with other dragonets without being judged would be nice. She then sighed, letting Blackout determine what they would do. She just sat closer to Blackout, her shyness finally showing through.
Edward
His ears perked at the name, before rattling the spikes on his neck. He then also mimicked the name back to Sleet, it was possible they were trained to mimic names back out of respect. He then glanced at Snow momentarily, the faintest of a silver glimmer behind his eyes reflecting in the sunlight, before looking back up at Sleet. 
"I'm Blackout, and this is my sister Blind Snow." He nudged his wing gently against his sister, before continuing. "We'll go. As long as there aren't any... Adult mean Ice'Wings we should be ok." He whispered the last part faintly, but it was still audible.
Kevin
He watches them repeat his name back to him with a slight sense of confused amusement. Where they taught to do that? Or is it just a little quirk shared by siblings? Either way, Sleet figures his best bet of welcoming them further is to do a little of what they do, so they don't feel outcast, or rejected.
"Blackout," He repeats, nodding to the little one with black scales, "And Blind Snow."
The sense of relief he feels from their agreement is palpable. This is good- they'll be somewhere safe. Surrounded by other dragonets, they can play in the rainforest, or the river, and they won't have to worry about food or wild animals-
Sleet blinks a couple times. He's getting ahead of himself.
*'Adult mean icewings...'* A parent, or someone else? Regardless, Sleet swallows down the spark of anger at the mere thought that they had ever even been frightened by a grown dragon, and he nods, offering the two a weathered smile.
"No adult mean icewings," He confirms. "Only icewing is my daughter, Floe, but she's not mean. Not mean at all."
Slowly, he moves to stand, making sure to lean back instead of forward so he's not towering over the little things. Sleet gives his hide a small shake, loosening out the aching joints of his shoulders before looking back at the two.
"It's a day's flight south from here, in the rainforest," He tells them, just so they'll have a general idea of where they're going. Now comes a bit of a tricky part, though, because Sleet doesn't see Blind Snow as being very trusting, and he doesnt want to push his luck with their comfort zone. But making sure they know they've got a choice is his second priority. "You two can fly on your own and follow me, or if you'd like, I can carry you on my back- it's entirely up to you."
Crystal
She was hesitant to trust the dragon so quickly, but as long as she was still with her brother, they could take on anything together. They were together when the incident happened, so she figured they'd stay together for anything else that could happen in the future. She glanced at Blackout, before flicking her tail. She then sighed, rubbing her snout slightly.
Edward
He perked at the other Ice'Wing dragon, but it was more in fear than curiosity, before relaxing at the comment. He muttered to himself quietly for a few seconds, before glancing at her sister when she glanced at him, and then lifted his head up to meet Sleet's gaze. "We'll go on your back. We've been travelling for a while, and we are very tired." He shuffled his wings, flicking his tongue.