Answer customer support emails automatically with AI

flowchart TD trig>"new customer email arrives"]:::trig s0["Classify email type"]:::task s1["Search for the answer"]:::task s2["AI drafts reply"]:::task s3["Send reply and update knowledge base"]:::task trig --> s0 s1 --> s2 s2 --> s3 gx{"× pre-sales or after-sales"}:::gate s0 --> gx p00["Search product catalog"]:::task gx -->|"Pre-sales question"| p00 p10["Search help docs and past replies"]:::task gx -->|"After-sales question"| p10 jn{"○ answer found"}:::gate p00 --> jn p10 --> jn jn --> s1 out[/"reply sent and knowledge base updated"/]:::out pay{{"faster support without manual replies"}}:::pay s3 --> out out --> pay classDef task fill:#e7f6fe,stroke:#34b8f0,color:#2c2a29 classDef svc fill:#f6f8fa,stroke:#7c8795,color:#2c2a29 classDef mi fill:#e7f6fe,stroke:#0079a8,color:#2c2a29,stroke-width:2px classDef human fill:#fff,stroke:#0079a8,color:#0079a8 classDef store fill:#f6f8fa,stroke:#0079a8,color:#2c2a29 classDef trig fill:#00a4eb,stroke:#0079a8,color:#fff,font-weight:bold classDef trigtime fill:#00a4eb,stroke:#0079a8,color:#fff,font-weight:bold classDef trigdata fill:#8ad4f5,stroke:#0079a8,color:#06314c,font-weight:bold classDef gate fill:#fff,stroke:#e8a23d,color:#6b4708,font-weight:bold classDef out fill:#1f9d6b,stroke:#167a53,color:#fff,font-weight:bold classDef pay fill:#06314c,stroke:#021f33,color:#fff