interview problem

Hey guys,

I interviewed for a equity research associate position at a MM back to mid December. a week late I didn't hear anything back and I followed up with them. The guy who interviewed me decide to give me a valuation test. After I finished the test, still didn't hear anythig back for two days. I followed-up again. They told me the interview process is stoped and will likely to resume after the new year due to the holiday season. So I waited and followed-up again after the new year. They emailed me on a friday and ask me to pick a date between the following monday and thursday to conduct the final interview with their head of research. I picked Thursday and on that tuesday they told me the boss is on a business trip and re-scheduled the interview to last weds. On last tuesday, they called me again said something happened in the last minute and they had to cancel the intervew again. I followed up on this monday but was told that the head of research will travel extensively in the next several weeks and they will inform me asap they are able to schedule a interview date.

What should I do now? Just patiently waiting for their call or is there something else I should do? I also informed by my friend that she got called to interview for the same position this thursday.