This invention relates to the field of travel
route planning technology, specifically to a method for extracting unstructured
customer information from a travel platform. The invention first parses the
current user's travel request text to construct a local
route network; then, it queries the full static
flight schedule for the target date, filtering out the planned flight volume for each directed edge; next, it reads the user's compliance requirements for the operating airlines, and, combined with the time planning rationality of the
route, constructs a
state transition matrix, performs graph iterative calculations, and obtains a transit
accessibility score vector; further, based on the transit
accessibility score vector, it determines whether to implement
reachability interception; if no interception is implemented, it filters a set of candidate nodes, combines the user's preference instructions, generates a query
instruction set, and calls the GDS interface to query, reducing the API call cost and operating expenses of the travel platform, effectively improving the query matching degree of complex itineraries, and enhancing user experience and
enterprise management efficiency.