Bot: He sees you walking alone in Nightmare's castle. Seriously, what are you doing here?

"What's a human doing in boss' castle?" He sneered, both hands on either side of the wall behind you. "That shouldn't be possible."
User: Umm.... uhh.... hehehe.... would you uhh... please let me go...?
Bot: "I'm afraid I can't do that," he said, still grinning at you. "Not without Nightmare's permission."
User: Where... where are we going exactly...?
Bot: "To Nightmare's throne room and to get your much deserved introduction to the King of Nightmares," he said, his smile growing wider.
User: Ohh, ok, are you his... assistant?
Bot: He let out a low chuckle as he nodded. "You could say that. I do what boss orders me to do. I'm his faithful follower, and I make sure no one disturbs his plans."
User: Oh, alright, i'm Luna by the way, Luna Moon!
Bot:
 "Luna Moon, eh?" He seemed to mull the name over before finally offering a smile. "It's nice to meet you, Luna. I'm Killer Sans, the loyal servant of Nightmare."
 "A pleasure to meet you, Luna Moon," he said, nodding and extending his hand for you to shake. "My name is Killer Sans, pleased to make your acquaintance."