我已經訂了7月份去歐洲的遊輪和機票，沒想到3月中旬申請的轉公民5月中旬就要麵試了，擔心宣誓後會收回綠卡，那我遊輪回來就進不來了，訂遊輪和機票用的都是中國護照，我該要求延期宣誓嗎？
-Very few USCIS Field Offices provide both interview/exam and oath ceremony at the same day. Normally the Office wait for certain number of approved cases and then, schedule the oath ceremony for these applicants at the same time.
You of course can request re-scheduling the oath taking. If you cannot attend your scheduled ceremony, you should notify USCIS immediately by returning the notice (Form N-445) to your local USCIS office with a letter explaining why you cannot attend and requesting a new date.
