My question involves a marriage in the state of: Utah

I understand that after being served with divorce papers from petitioner the respondent has the option of filing an answer within 20 days if they live in the state or 30 days if they live out of the state. If the respondent files an answer along with a counterclaim and the petitioner doesn't respond to that answer and counterclaim by the respondent then what happens?

Can the respondent file for default because their answer and counterclaim was filed and petitioner didn't respond to them or will the divorce go through mediation and possibly a hearing?