Shooting the interview with the camera at a distance from the interviewer or from different heights to the interviewee not only changes the eyeline but alters how the viewer feels. For example, if the interviewee looks further away from the camera it can make the viewer feel they are not engaged in the interview.
"Putting the camera above interviewees will put them in a childlike position." – Kat Macaulay
The closer the interviewer sits or stands to the camera, the closer the eyeline of the interviewee will be to the camera. This is often called the neutral eyeline and is most commonly used in documentaries and news.