Don't waste your time!
Also, if you manage not to get bored trying all combinations and searching all over the place for items you might have missed (because they looked totaly unrelated to your problems !), if you do that, you'll certainly reach the point where you'll just throw something at the screen to make the anoying dialog stop !!
And finally, if you think that at least the graphics have something to make it a little more interesting, you're sadly mistaken! I'd say the graphical part is barely above Syberia's and keep in mind that's a game from 2002 (or the 2nd release from 2004, old anyway !).
Overall, I don't usually put a price on having fun, but even if this game ware free, it wouldn't be worth the time; you only have one life, don't waste it on THIS !