For Tatyana, instead of immediately locking you into a dialogue at the start, she should a "reaction" saying what her first line would be "Excuse me, (...)", allowing player to decide whether to interact with her or not. She could repeat he reaction like 3 times before giving up on your, trying to use "Miss?"/"Sir?" or "Umm, Miss?/Sir?", etc. I think the benefit of that is it introduces the player to a different type of NPC dialogue earlier on.
For Malone, when you first enter his apartment in a line of sight, he should respond with something like "Hey, ho the hell are you?", and if player doesn't interact with him, he'll repeat himself few times with something like "You're gonna just stand there" or "Get out off my property!", triggering the player to talk with him. I feel it will be a more organic introduction to him before the main dialogue.