Different dates for Marriage and marriage registration

[pchelsea]

Hello,
We did a court marriage in Dec 2015 and are doing our traditional marriage this Dec(2016). We had to postpone our traditional marriage by a year due to unavoidable circumstances. Since we need to show the wedding card and marriage registration for my wife's visa interview, Would it cause any problem during the interview? How can we be prepared for the interview.
Any other suggestions are welcome. What is the wedding date that we should enter in DS 160

Thank you