KUALA LUMPUR — A Malaysian airline has designated adults-only “quiet zones” on its planes to keep passengers from being disturbed by loud babies and toddlers, upi.com reported. Air Asia X said its five-times-a-week flights from Australia's Gold Coast to Kuala Lumpur now have “quiet zones” in seven rows of economy class reserved exclusively for passengers over age 12, the Brisbane (Australia) Courier-Mail reported Friday. Tickets for the quiet zone cost an extra $15 for the six-hour flights. “It is important to emphasize that we are a very family friendly airline and welcome all passengers,” an airline spokesman said. “It's a seating innovation introduced to provide greater choice for guests. The quiet zone seating area comprises 63 seats out of a total seating capacity of 377, so it only applies to a small section of the aircraft. There's plenty of room for families with children.” — SG