ok now I am confused...why "wrong answer?"

Also, I just looked up on Experflyer and got very low fares....how do I go about booking those? I am trying to use the ITA software, but can't get it to pull up the fare basis that is coming up in ExpertFlyer.

What gives?

For example:

Air Berlin fare basis: WNNPAT on class w. Fare is about $261USD