Tamika Cross, a black physician, accused Delta Air Lines of discriminating against her last week after a flight attendant declined her offer to help an unresponsive passenger because the employee did not believe Cross was a doctor.

Cross took to Facebook last Sunday to share her story, telling her followers that despite her qualifications as an obstetrician and gynecologist the flight attendant refused to let her tend to the unresponsive man.

“Oh no, sweetie, put [your] hand down,” the flight attendant said, according to Cross. “We are looking for actual physicians or nurses or some type of medical personnel, we don’t have time to talk to you.”

"Then overhead they paged 'any physician onboard, please press your button.' I stare at her as I go to press my button," Cross wrote. "She said, "Oh, wow, you're an actual physician?' I reply yes. She said, 'Let me see your credentials. What type of doctor are you? Where do you work? Why were you in Detroit?’”

Cross told the worker she works in Houston and was in Detroit for a wedding, “but believe it or not, they DO HAVE doctors in Detroit. Now excuse me so I can help the man in need,” according to her post.

Cross said a white man then approached the attendant and said he was a doctor, a statement the Delta employee apparently took at face value.

"She says to me, 'Thanks for your help, but he can help us, and he has his credentials,"' Cross wrote. "Mind you; he hasn't shown anything to her. Just showed up and fit the 'description of a doctor.' I stay seated.”

The flight attendant reportedly apologized and offered Cross sky miles; a statement from Delta claims the company is reviewing her complaint.

"Discrimination of any kind is never acceptable,” Delta spokesperson Liz Savadelis said in a statement. "We’ve been in contact with Dr. Cross and one of our senior leaders is reaching out to assure her that we're completing a full investigation."