What section do I enter in my FSA information into?

FSA for what? most items are not entered. one exception is an FSA for dependent care which shows up in box 10 of your w-2. 

If you had a medical FSA that is not reported anywhere on your tax return.  Don't report the expenses paid from the FSA as deductible medical expenses, and you don't report the payroll deductions or reimbursements either.  (The money you contributed should have already been subtracted from your W-2 wages by your employer so you aren't taxed on them.)

A dependent care FSA is reported in box 10 of your W-2 and then you follow up with the dependent care interview on the deductions and credits page.