英语翻译我看了下 系统已经没有您要求的航班 经济舱了 您需要在 singaporeair 官网保留的预定号 尽快出票 不

I took a look at the system that it had no more tickets for economic class you asked for。You may need to keep your reservation number at Singaporeair website and issue the ticket as soon as possible,otherwise there will be no tickets for economic class on the same date。