hiya!
I hear conversations like that all the time in this area.
Wimmin mainly, meeting in the street as they haul reluctant children to and from the local school.
Her: "Hiya"
Another Her: "Hiya"
First Her: "Howya?"
Second Her: "Kay .... Howya?"
First Her "Kay ..... Seeya"
Second Her: "Yeah ..... Seeya"
It drives me up the wall.
I have to sell this house and move while I still retain some semblance of sanity.