"Categories of Employment

You can deduct unreimbursed employee expenses only if you qualify as an Armed Forces reservist, a qualified performing artist, a fee-basis state or local government official, or an employee with impairment-related work expenses."

Are you sure the travel costs are not reimbursed by the employer?

Are you sure the parking and tolls are not part of commuting to their place of work?

Was the training cost to get a different job, to get or stay licensed, or to change careers?

Are you up to date on the Regulations that apply, as changed by the Tax Cut and Jobs Act 2017?

Have you done your research at irs.gov?