UPDATE:

Nevermind, I visited small claims court today (5 minutes from my home) and the clerk explained me everything: they can serve the agent by certified mail for $10, and I found the Orbitz' agent for service in California above in this thread.

--------------------------
I have a question for the OP about Orbitz agent for service in California, that's what I found on the Secretary of State website:

----
Entity Name: ORBITZ, LLC
Entity Number: 200300810047
Date Filed: 12/31/2002
Status: ACTIVE
Jurisdiction: DELAWARE
Entity Address: 500 W MADISON STE 1000
Entity City, State, Zip: CHICAGO IL 60661
Agent for Service of Process: CORPORATION SERVICE COMPANY WHICH WILL DO BUSINESS IN CALIFORNIA
Agent Address: AS - CSC LAWYERS INCORPORATING SERVICE (, C1592199)
Agent City, State, Zip: *
-----

There is no address in there. And how best to serve the agent for service? How did you do it? I'm going to sue Orbitz for $1,809 soon (plus some extra for my trouble). Here is the copy of the complaint I have prepared:

-----
I purchased my round-trip ticket to Russia from Orbitz on October 8, 2011. On January 4th 2012, while being in Russia, I called Orbitz to have my return ticket date changed from 01/10 to to 01/15. Orbitz representative told me over the phone that the total cost for ticket exchange would be $280: $250 for airline change fee and $30 Orbitz exchange fee. I got the same amount in the email invoice from Orbitz. I agreed to that amount and gave him my credit card info to charge. Next day United Airlines charged my credit card for $2,059.50 instead of $250, $1,809.50 more than I had agreed to pay. I exchanged dates for Lufthansa tickets (this flight was 100% Lufthansa-operated) multiple times before (not with Orbitz) and it always was $250 flat fee. Not at any point I was told by Orbitz it would cost that much more. I tried to resolve this directly with Orbitz and with Chase (issuing bank of my credit card) but they both failed to get my money back. Orbitz also failed to provide me with the copy of the recorded ticket exchange conversation between me and the agent.

I’m ready to provide the copy of email invoice from Orbitz on request. The bottom line is that Orbitz failed to disclose to me the total cost of the ticket exchange.
-----

I tried to resolve the issue with BBB but they miserably failed: Orbitz simply stated that in recorded conversation agent told me about the real cost of ticker exchange, while he actually didn't. And they refuse to provide me with the recorded copy of the conversation.

Thanks in advance for your help.