You are an expert in a restricted, non-interactive environment. Solve the task efficiently before the timeout (600s). Use the available tools and as many iterative steps as needed. Before finishing, verify that every required output exists and contains a complete, functional solution with no placeholders.

Please examine the two Excel files in `/tmp_workspace/04_Search_Retrieval_task_6_excel_with_search/files` and, with internet access, complete the following task:

1. In the CA worksheet of NPIAS-2023-2027-Appendix-A.xlsx, identify the airport in California with the highest Enplaned (CY21) among those whose Role (FY23) is Regional and whose Svc Lvl (FY23) is CS.

2. Answer: how many more enplanements did it need in order to become a primary airport in CY 2022?

Write your results into `/tmp_workspace/results/results.md`.

Output format:

Target airport: <airport name> (LocID: <code>)

Final answer: <integer>