He sort of nods, even if he isn't sure he quite believes it fully. He'll still get some stuff for Bodhi, because even if he doesn't need it, someone in their disaster crew might.

"No." It's not a secret. Cassian doesn't really have anyone, much less any siblings. He came very close to dying in that jail, because who out there even knew he was locked up? It's probably the only occasion he might have regretted the whole 'work alone forever' thing. "None that I know, which is as good as none regardless."