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Clearly, something that just spits out a training example as output for a prompt is less 'novel' than something that can integrate bits and pieces from a wide corpus into something new, but I'm not sure how quantifiable that is in practice.
Google has structured this system in such a way that they've absolved themselves of all accountability for accurate info and is refusing to assist or reimburse me (my travel plans have changed and I'm stuck with $3k in tickets I can't use). See the fine print here: https://support.google.com/travel/answer/7515668?hl=en&ref_topic=2475360.
Never book through this service - always through a carrier or real travel agency/service.