"Oh, sure, only..." Nico hesitated with a slight wince. He hated letting anyone know he needed help, even Percy and Annabeth, so to tell a perfect stranger he didn't have enough for coffee was near-unthinkable. Nope, he just couldn't do it. He shook his head regretfully. "I was rethinking the coffee plan anyway. I'll probably just-- explore town first."
But he blinked at the question. The way she'd asked... Sure, it could be code for how long did you plan to run away from home or something like that, but he didn't think so. Maybe she was a fellow demigod, familiar with sudden involuntary quests (which Nico was beginning to assume this was).
"Not exactly planned," he admitted cautiously. "I didn't get time to prepare for the trip."