The paper gives an overview of Estonian dialogue corpus. 
The corpus currently includes dialogues of two kinds -
recordings of spoken conversations, and dialogues 
collected by Wizard of Oz technique.
We have worked out a typology of dialogue acts
and are annotating them in our corpus.
Some problems of determining of dialogue
acts are considered, among them different
kinds of questions. We are interested in
information-seeking dialogues first of all,
and our further aim is to develop a dialogue
system which can interact with a user in
Estonian following norms and rules of
natural human communication.