Invited office friends,

My mother was ready to enjoy the 3 day trips from nyc. But My father told her that He invited his office friends for lunch, and She has to cook the best dishes for them. My father selected the lunch day which would be the 3rd day of my mother's tour. My mother is worried about her plan. Then I suggested to her you should go on 1 day trips from nyc. Because with this plan You can enjoy a tour and attend the father's guests too and also make lunch for them. What do you say about my suggestion?