Any reason why he isn't filling out his own N-400?
Have him double-check it before sending it, and take a copy of the finished document right before sending it so it can be checked again while waiting for the interview, and corrected at the interview if necessary. It is very common for there to be mistakes when one spouse fills out the N-400 for the other.
Regarding those tickets, I say to list them, but there have been several threads debating it and a bunch of posters will soon chime in saying not to list them if they were under $500.
EB3 ROW I-485 Approved: July 2007
USC: July 2013
I am a layman, not a lawyer. What I write here is not official or professional legal advice. In addition, my answers on this forum are specific to the scenarios discussed in each thread and should not be generalized to other situations.