The query parameters as a JSON object. const queryParams = { departureAirportCode: "AMS", arrivalAirportCode: "BCN", departureDate: "2025-03-03", returnDate: "2025-03-10", adultCount: 1, childCount: 0, infantCount: 0, carrierCode: "TO", flightNumber: 5131, brandedFare: "Basic", include: "serviceCharges" };
Fetches flight availability data from the API.