Give customers a chatbot that talks, searches, and remembers

flowchart TD trig>"customer sends a message"]:::trig s0["read the question"]:::task s1[("check conversation memory")]:::store s2["reply with voice"]:::svc trig --> s0 s1 --> s2 gx{"× is a web search needed"}:::gate s0 --> gx p00["search the web for answer"]:::task gx -->|"search needed"| p00 p10["use existing knowledge"]:::task gx -->|"no search needed"| p10 jn{"○ answer ready"}:::gate p00 --> jn p10 --> jn jn --> s1 out[/"spoken conversational reply"/]:::out pay{{"answers customers any time of day"}}:::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