Why does a Jewish person often end a conversation by often saying "shalom, shalom."?

The word "Shalom" acts in the Hebrew language both as hello and as bye bye. These are not just opening words to the discussion but also a blessing to the converse partner. This word is also another name for G-d and therefore acts as a word of blessing, wishing the best in the manner of peace and health. Rabbi Naftali Friedman