Seeking interview of friend

This concerns the Warren Commission investigation into the assassination of President John Kennedy and the voluminous records of the investigation.  Not very long after the assassination my companion Vicki was interviewed in the main branch of the Dallas Public Library about our -- hers and mine -- encounter with Lee Harvey Oswald the previous September, 1963.  I know for a fact that this interview took place.  I was present and saw it going on from a short distance in the same large room, although I could not hear what Vicki and the government agent, presumably from the FBI, were saying.  It took place in late 1963 or early 1964.  Vicki and I were 15 years old at the time.  In the normal course of things, I suppose, the agent would have written and filed a report on the interview.  He interviewed Vicki, but not me.  I have never known why he talked to only her.  I would like any help in finding the hypothetical report on that interview among government records.