Fix extra space issue and LLM hallucinating

dummy_agent_library.ipynb

@@ -378,7 +378,7 @@
       "Thought: I now know the final answer\n",
       "Final Answer: the final answer to the original input question\n",
       "\n",
-      "Now begin! Reminder to ALWAYS use the exact characters `Final Answer:` when you provide a definitive answer. \n",
+      "Now begin! Reminder to ALWAYS use the exact characters `Final Answer:` when you provide a definitive answer.\n",
       "<|eot_id|><|start_header_id|>user<|end_header_id|>\n",
       "What's the weather in London ?\n",
       "<|eot_id|><|start_header_id|>assistant<|end_header_id|>\n",