会食や歓送迎会におすすめの個室のあるレストランって英語でなんて言うの？

こんにちは！
ご質問ありがとうございます。

ご質問について、いくつか言い方が考えられますが、例えば、
This izakaya offers private rooms, perfect for business dinners with clients or welcome and farewell parties. The 10-course meal, including an all-you-can-drink option, is priced at just 5,000 yen per person. With a diverse drink menu for the all-you-can-drink option, featuring choices from sake to cocktails, everyone from company executives to young women can find something to enjoy. Plus, it's a private space, so there's no need to worry about our private discussions getting out.
と説明できます。

役に立ちそうな単語とフレーズ
business dinner 仕事上の話し合い・親睦会などを兼ねた夕食会
welcome 歓迎
farewell 送別会
welcome and farewell party 歓送迎会
including an all-you-can-drink option 飲み放題付き

参考になれば幸いです。