Can I say like this way:<br/><br/>David: Wow, after listening all the songs, i really want to sing together. <br/><br/>John: Me to. But our time is limited. <br/><br/>David: It's time up / It comes to the end of English Day. We can continue next week. <br/><br/>John: yup. see you all again in air. Bye.<br/><br/>P/s: How can I write it more natural? Anyone can give me some comments?