Hi there! I created a quest witch scene where my npc says phrase,everything works fine, i sent my esp to my friend he said dialogue doesn't works.Why?

There's a long thread on this: http://www.gamesas.com/index.php?showtopic=1399783 that may be the problem.

No, dialogues works fine on my computer but my friend doesn't works maybe need sent some files to my friend?

Are you doing this through the steam workshop? Because I had to send my friend the voice files separately for him to get them to play.

No, i just sent by program bsa archive, by the way i've created dialogues through scene

Your friend needs the scripts that go along with the dialogue. Assuming there are scripts.

You can go to file > Create Archive and then select everything in the list and save it as a new .bsa file. This .bsa file gets created in the Skyrim root Directory. Send your friend this file as well as the .esp file. And also there is a dialogue bug and a quick workaround is basically hitting F5 and then F9 when your friend is in-game. This basically quicksaves and quickloads.

Oh and make sure you have your .esp loaded as the active file when you create the archive.

I've already done it i think that because of version of game