"dialogue", "talks" and "parleys"

Also, in the context of discussions between countries, or similar:

"Dialogue" usually involves only two parties, and usually describes an ongoing series of communications.

"Talks" can involve more than two parties, and usually refers to a specific event -- e.g. a summit or conference.

"Parley" is a word that I've almost never come across in real life. But Google News Search throws up rather more recent examples than I would have expected, so perhaps in some parts of the world it is more common.

I also recall it being used in the Pirates of the Caribbean movies.

Yes, I agree. I had a talk -- personal conversation.

I think your missing "a" was just a typo.

Abil

In my view, there is a difference between "talk" and "talks". For example:

I had talk with him (personal conversation).

The rebels held talks with the government (formal discussion on specific agenda).

A couple more meanings for the noun:

"Talk" (uncountable) can mean verbal communication in general, sometimes extended to written communication: There's been a lot of talk about the economy recently.

"Talk" (countable) can mean a speech or presentation: I gave a talk on plant breeding; I've given several talks on plant breeding.