Going biblical, the human soul dies at death. Man is a soul, that's why if three people die in an accident, we can say three souls were lost. When God made the first man, the Bible records that he breathed the breath of life into him and he became "a living soul". Gen : 2:7. More so, Ezekiel 18:4 says " the soul that is sinning shall die". So at death, soul dies. But the memory of the person lies with God who will remember and resurrect such dead loved ones.

Another persons opinion may be different but this is mine and what I learnt from the bible. Even animals are souls