Resume summary for new career field?

How should you label/describe yourself on a resume if you’re trying to enter into a new career field?

I graduated a few years ago with a sociology degree but I’ve never managed to get a job in that field, instead I’ve just worked in customer service and art. Now I’m trying to enter into a career field closer to sociology but I feel like if I call myself a “customer service representative” or “artist” in my resume summary that it’s going to be more difficult getting the type of job I want. Can I call myself a sociologist even though I’ve never worked in the field?

usa jobs
usa jobs resume
usa hotel jobs
usajobs
usa jobs federal government
usa job in ksa
usa jobs
usa jobs login
usa jobs gov
usajobs.gov
www.usajobs.gov
usajobs.com
usajobs
usajobs.gov official