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How we could identify the LCC and GDS flights from API response?
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If the search response contains "IsLcc": True, it means the flight is a Low-Cost Carrier (LCC). In this case, you do not need to call the GDS API. Please follow the LCC booking process.
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If the search response contains "IsLcc": False, it means the flight is a GDS flight. In this case, you must follow the GDS booking steps.