Amazon Software Developer interview questions

First interview felt almost robotic. Conversation lacked fluidity and any response from the interviewer seemed to be read from a list of questions. Second interview was alright. I didn't understand the question, so I knew immediately it was not going in my favor, haha. But, this conversation also lacked fluidity, and any question I had in regard to the problem was poorly answered by the interviewer. I don't think they wanted to be there, which is okay but felt odd on my part. Third interview the interviewer did not show up, and I had to reschedule. Replacement interviewer was actually great and super kind! They answered all of my questions about the problem well, and made the interview feel very comfortable.