https://support.google.com/assistant/thread/311491332/%E3%80%90-%F0%9D%9F%AE%F0%9D%9F%B0-%F0%9D%97%B5%F0%9D%97%BC%F0%9D%98%82%F0%9D%97%BF-%F0%9D%97%B0%F0%9D%97%AE%F0%9D%97%BB%F0%9D%97%B0%F0%9D%97%B2%F0%9D%97%B9-%E3%80%91%E3%80%91what-is-the-cancellation-policy-for-lufthansa
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