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Consistency & distributed transactionsMediumSDE-2

A travel app books a flight, a hotel and a cab in one checkout, each through a different provider. The hotel booking fails after the flight is confirmed. Walk me through how your system handles it.

Asked at
AirbnbMakeMyTripUber

Think first

Answer out loud as you would in the room — clarify, give numbers, name the trade-off — then compare with the model answer.

Go deeper

Design hotel booking (Airbnb / Booking.com) Lesson: Distributed transactions: 2PC and sagas

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