Flights serving eastern China were disrupted on Saturday as Typhoon Dolphin approached the coast, with some services cancelled and airlines offering flexible rebooking and refund options for affected passengers.Most of the typhoon-related flight disruptions have been reported at airports in the cities of Ningbo, Wenzhou, Taizhou, Hangzhou and Shanghai, according to Chinese media.Some travellers also reported receiving notifications that flights to and from Shanghai on Sunday and Monday would...