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PhilippinesTravel and aviation2026 – ongoing

Philippine Airlines

Multilingual hotline voice agent

Philippine Airlines raised AI booking-retrieval success from 30% to 75% after simplifying verification

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Problem

Callers switched between English and Tagalog during conversations. The airline wanted its hotline to handle these requests without forcing customers through a conventional phone menu.

Approach

Philippine Airlines and ibex launched a Sierra voice agent in April 2026. It connected to booking and flight-status APIs and transferred requests outside its scope to staff with a conversation summary. Production-call reviews exposed a verification step that caused callers to abandon booking retrieval.

Results

75%booking-retrieval success after verification changes, up from 30%, per SierraVendor case study[1]

Takeaway

Changing the verification flow improved retrieval after launch. The reported gain included a service-process change alongside the AI deployment.

Categories

Business function
Customer service
Innovation type
Process innovation
Evidence
Vendor case study

Sources

Source summaries

[1]Sierra2026

Sierra described the hotline launch with ibex and the airline's subsequent changes to call flows. It reported booking-retrieval success rising from 30% to 75%.

Full details are in the original sources.

Added 1 Nov 2026 · Updated 1 Nov 2026
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