Let clients book, reschedule, or cancel appointments over WhatsApp

flowchart TD trig>"client sends whatsapp message"]:::trig s0["interpret client request"]:::task s1["check calendar availability"]:::svc s2["send confirmation to client"]:::task trig --> s0 s0 --> s1 gx{"× book reschedule or cancel"}:::gate s1 --> gx p00["create calendar booking"]:::task gx -->|"book new appointment"| p00 p10["move existing booking"]:::task gx -->|"reschedule appointment"| p10 p20["cancel existing booking"]:::task gx -->|"cancel appointment"| p20 jn{"○ confirm to client"}:::gate p00 --> jn p10 --> jn p20 --> jn jn --> s2 out[/"appointment updated automatically"/]:::out pay{{"bookings handled without staff"}}:::pay s2 --> 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