Now I tried 'use the phone' and got locksmith. Now he asks me 'what's the problem' but I can't find a way to respond to him. How to respond to locksmith?
I tried some standard text adventure commands, like "talk to locksmith", "tell locksmith about door" etc. You might check list of standard commands in text adventures from The People's Republic of Interactive Fiction...
Nice, thank you!! I wish I expanded more on the Town with more NPCs and puzzles, maybe I'll do in a future release post-jam! I'm pretty satisfied with it, though!