What is a metaphorical dragon

Plzz true or false: a hyphen can indicate that a word has been split up at the end of a line and continues onto the next line.

What is the best revision of this statement from the body of a cover letter?

Aman lives on the twelfth floor of an apartment building. every morning he takes the elevator down to the lobby and leaves the building. in the evening, he gets into the elevator, and, if there is someone else in the elevator -- or if it was raining that day -- he goes back to his floor directly. otherwise, he goes to the tenth floor and walks up two flights of stairs to his apartment.