The phrase "such interactions" refers to the specific ways people communicate or connect with each other in a particular situation or context. Full definition
The level of success of such interactions between the seller and buyer will be dependent on seller who can adjust him / herself to the personality of the buyer. (jobdescriptionandresumeexamples.com)
These places have become reputed for such interactions and people from both sides of the coin end up going there to see whom they meet. (uk-dating.org)
It's always advisable to use your nickname in such an interaction. (topdate.info)