Given the task definition and input, reply with output. In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.

Indonesia AirAsia Flight 8501 was a passenger flight from Surabaya to Singapore .

Indonesia AirAsia Flight 8501 was a scheduled international passenger flight operated by Indonesia AirAsia – an AirAsia Group affiliate – from Surabaya , Indonesia , to Singapore .