Not My Field Of Expertise

I work in a call center for a medical insurer. I am on a call with a customer who lives in a rural part of the country.

Me: “So, just about anyone in the medical field can fill out that insurance claim form for you.”

Caller: “But we don’t just have doctors walking around fields here!”

Me: “No, sorry, I meant the medical field. Someone who works in any medical capacity.”

Caller: “We only got corn fields out here.”