How are you doing? 元気? I hope you are well. あなたも元気だと良いけど。 Sorry it took me so long to get back to you. 返事が遅くなってごめん。 I’m doing pretty good but a little bit busy. 私は元気です。ちょっと急がしいけど。
Are you free on Friday night? 金曜日の夜、空いてる? I’m not doing anything. 何も予定ないよ。 I’m free on Friday. 金曜日はひまだよ。