How to get a root canal done on denti cal

I have been pushed around from Highland Hospital to UCSF and I have followerld instructions and sent in my info now they say I have to wait until september. I have been waiting for a root canal for months and no one gets back to me unless its too late. Does Denti cal completley cover emergency dental visits. I am in tooth pain and it is not fun. Can I just show up to UCSF and potentiall be treated? It is quite a ways away and I have already tried this. Is there a way to expedite an appointment? Do I jusr have to bother and say I am in pain?