Translation of significance in German

He suggested that Sofia or Linda speak with his student (Jack) directly on the following number: X. Jack will be happy to share his techniques, experience and protocols with you guys. Just call him.
I am happy that you are satisfied with your results! Of course I will come again. However, next time I would like to speak to each of the professors in advance to see what their need is.
Some of the people had invited me for dinner and I joined them. I soon found out that they were eating at their apartment and were cooking by themselves. I found myself peeling raw potatoes.