‘ bla bla bla bla bla bla ,’ said fred. ‘bla bla bla bla bla.’ ”

If it’s a single passage.

” ‘ how are you fred ‘ ”

” ‘ bla bla bla bla bla bla ,’ said fred. ‘bla bla bla bla bla.’ ”

If it’s two lines to be quoted separately, with some comment of yours inbetween them.

Additional: I hope you understand what I’m talking about here.

If you are quoting something, anything, then you would put quotation marks at the beginning and end of an uninterrupted quote. So if both lines of conversation you are quoting are being quoted together by you, then you simply put a quotation mark at the beginning of the entire thing, and then at the end.

Such as

” QUOTE ”

QUOTE being what you are quoting, however long it might be.