graph TD A[Start: Urgency_Engine_Agent] --> B[Load Input Files] B --> C1[Parse Email Log] B --> C2[Parse Booking Log] C1 --> D[Detect Follow-up Targets] C2 --> D D --> E1[24h Open No Click] D --> E2[48h Open No Click] D --> E3[15min Payment Abandoned] E1 --> F[Generate Email Content] E2 --> F E3 --> F F --> G1[Reminder 1 Template] F --> G2[Reminder 2 Template] F --> G3[Cart Recovery Template] G1 --> H[Multilingual Translation] G2 --> H G3 --> H H --> I[Send Emails via SMTP] I --> J[Log Send Results] J --> K[Format as CSV Rows] K --> L[Update Master Email Log] L --> M[End: Updated email_log.csv] subgraph Silo1[Data Ingest & Analysis] B C1 C2 D E1 E2 E3 end subgraph Silo2[Content Generation] F G1 G2 G3 H end subgraph Silo3[Dispatch & Logging] I J K L end