This is an email I would like to use to reply to my friends and some people who I don't know very well. Please help me to make it sound more like a real native English speaker's work, and improve it a bit. Thank you very much for your help. =============== Dear all, / Hi, everybody! how are you? ? How are you? A total of 16 people would like to join us on Sunday. They are xxxxxxxx (names). Only xxx [if this one name, then use singular 'is'; if this represents many names, then use 'are'] is available this weekend, so I booked 3 courts, one for 2 hours, and the other two for 1 hour. If you want to bring your friends, welcome, but please tell me as soon as possible latest by 17:00, so I can try to extend the reservation one hour longer. You are more than welcome to bring your friends along, but please let me know by 17:00 at the latest, so that I can try and extend the reservation for an extra hour. Thank you. Best wishes, Yoyo Very few changes were needed. You could even have sent the e-mail as is!