Få= Recieve, to be given
eks: Jeg FIKK en bil.
but you can allso use it like this:
To be allowed= Å FÅ lov
So the sentece you wrote could allso be written like this:
"Kan jeg få (lov til å) snakke med...?", but we usually say this. It`s very formal and outdated.
Hope this was not confusing. Just contact me if I was unclear ^^