I finally had a chance to replay it and managed to get two of the endings (I'm not sure how to get the first one).
Also, I noticed from the other comments that the response options are limited due to English not being your first language, that's a valid reason, but if you were to update this I'd recommend picking a response word you do know (eg, "fine" for the "how's your day?" question) and using a thesaurus to find a wide variety of synonyms which you could put into an array. If the player has a response that's found in the array, then the game proceeds as normal, and if not then the person you're talking with could act confused for a bit before the game progresses anyway. That way there's no restrictions on what the player can type, and if you miss a few synonyms it's not a big deal.