There are several uses for the word "well". One important use is to show that you are ready to finish a conversation. The end of a conversation might go something like this:

A: Well, I look forward to working with you.

B: Yeah, me too.

A: See you around.

B: Bye.

Some other examples of "well" used to end a conversation are:

Well, it's nice to have you back.

OK. Well, it was a pleasure meeting you.