A Friend of mine asked to reschedule the test and on the phone they told her that it is possible, but it cannot be rescheduled a second time so if you cannot make it to the 2nd date they will close your file, so she went to the 1st date to be sure... Personally I would try to make it to the first date unless it is really impossible. Based on feedback on forums it can extend for many months your application (but there are also people that get a 2nd date quickly in 6 weeks). In the end this is a citizenship process and I think the Administration would consider that it is up to the applicant to make it possible to be at the test and the oath, not them to accomodate all reschedules, that's why maybe sometime they do not rush into finding you a 2nd date. In any case if you think you can accomodate to be at your test rather than reschedule I would personally do this, but if not then you can ask for a 2nd date. Good luck to all