Customer Experience & Conversational AI Practical insights
Let customers control your chatbot’s language
Design an English and Dutch chatbot that respects language choices, handles mixed terms and preserves product names without making customers start again.
A bilingual chatbot should follow the customer’s chosen language without losing the task. The page language is a useful starting signal, but it does not justify overriding an explicit request. Treat language choice as part of the conversation design, with a visible way to change it and consistent behavior after a handoff.
Set a predictable starting rule
Begin in the selected website language unless the customer chooses otherwise. Respond to an explicit request for Dutch or English immediately. If a short opening is ambiguous, retain the current language or offer a simple choice. Do not infer language preference from someone’s name, nationality or location.
Handle mixed vocabulary naturally
Dutch marketers often use English product names and terms such as lead scoring. Preserve official interface labels where translation would make a setting harder to find. A Dutch answer can explain an English label without switching the entire conversation. Keep a reviewed glossary for terms whose meaning affects the task, such as cancellation, renewal and consent.
Carry the request across the switch
Fin documents conversation-context retention, but that is not evidence that every bilingual implementation handles every switch correctly. [1] Test a customer who explains an issue in English and requests Dutch midway. The assistant should retain the supplied facts, while retrieving the correct language version of the policy. Never translate one country’s conditions into an apparently valid policy for another.
Review with fluent speakers
Use complete tasks covering colloquial Dutch, spelling mistakes and English software terminology. Ask reviewers whether the answer is natural, factually equivalent and easy to act on. Track unintended switches and terms that users misunderstand. If a translated source is missing or stale, disclose that limitation and offer a current source or human help. Language fluency should not conceal a gap in authoritative information.
Sources and evidence
Sources checked on 4 October 2026. Proposed workflows and hypothetical examples are editorial analysis.
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