第一次安排的宣誓日期是4/23号，因为5/10要回国看九十岁老母亲，考虑到申请美国护照来不及，就申请reschedule, 打电话老是转不到人工，后来通过online chat申请了reschedule, 但4/24号状态更新，说是no appearance, 寄出来一份信，需要按信上说的做，这份信我一直没收到，5/9号状态又更新了，说是reschedule了，我于5/10去了中国，5/16号收到通知，新的宣誓日期是5/21，我5/19号联系移民局要求reschedule, 5/20号收到通知不能reschedule, 当时已经没法赶回5/21号的宣誓，于是写了个详细的解释以及要求reschdule，发给老公，老公打印出来，寄给移民局，现在我人返美，我还能再做什么？
我的绿卡6月底到期，我需要先renew 绿卡吗？
-Not have to (not need to waste your money to do it).
我现在是加拿大护照。
ChatGPT 说可以再打电话给移民局，和in-person appointment, 你能不能给我点建议我该怎么办？
-Normally if you missed the oath ceremony twice without reasonable explanation, then your N-400 probably will be revoked. Because you requested reschedule of the oath ceremony with explanation, I think you should be fine. You need to contact USCIS to reschedule the oath ceremony appointment by phone (talk to a live person on phone and ask him/her for suggestion in your case). If possible and necessary, ask USCIS to make an appointment for you to visit the USCIS Field Office near you.
