CORIAN.DLG seems to have been intended for a ranger named Corianna:
STRREF #15810: "I have rescued the ranger Corianna from where she stood, petrified by a basilisk's gaze. Although Corianna has no desire to meet the creature a second time, she has been kind enough to inform me that it was heading east..."
STRREF #15811 "I have rescued the ranger Corianna from where she stood, petrified by a basilisk's gaze. Although she has no desire to meet the creature a second time, Corianna has been kind enough to give me a potion of mirrored eyes and inform me that it was heading east..."
And the contents of CORIAN.DLG:
IF ~false()~ THEN BEGIN 0 // from:
SAY #15543 /* ~Damn basilisks! I think it was heading east but I've had enough of it for one day, thank you very much. If you're into hunting the stupid things down, though, don't let me stop you.~ */
IF ~~ THEN DO ~~ JOURNAL #15810 /* ~I have rescued the ranger Corianna from where she stood, petrified by a basilisk's gaze. Although Corianna has no desire to meet the creature a second time, she has been kind enough to inform me that it was heading east...~ */ EXIT
END
IF ~false()~ THEN BEGIN 1 // from:
SAY #15544 /* ~I'm so glad you found me out here. Basilisks aren't exactly the thing to face alone. I'm going home but if you want to hunt it down, make sure you take this potion of mirrored eyes along with you. Its lair can't be too far from here.~ */
IF ~~ THEN DO ~~ JOURNAL #15811 /* ~I have rescued the ranger Corianna from where she stood, petrified by a basilisk's gaze. Although she has no desire to meet the creature a second time, Corianna has been kind enough to give me a potion of mirrored eyes and inform me that it was heading east...~ */ EXIT
END
IF ~false()~ THEN BEGIN 2 // from:
SAY #15545 /* ~Oh no you don't... If you want to face that basilisk, that's your business. I'm heading home.~ */
IF ~~ THEN DO ~~ EXIT
END
IF ~false()~ THEN BEGIN 3 // from:
SAY #15546 /* ~Must you? Look, it's been a long day for me... Oh, damn you after all!~ */
IF ~~ THEN DO ~~ EXIT
END