Fetching details from the dictionary...
giving and taking; exchange (of letters); arguing back and forth; (conversational) exchange
メールのやり取りで合意に達した。
We reached an agreement through email exchanges.
二人のやり取りを傍で聞いていた。
I was listening to their exchange from the side.
書類のやり取りに手間がかかる。
The exchange of documents takes effort.