Thank you to 美西遊子 and 863211. More questions on I-94, please hel

My friend left US early this year. He couldn't find his airplane ticket and the boarding card. He took Air China back to China. Does Air China keep passengers's information? How can my friend get some kind of evidence from Air China? Does anyone have the experience?

One of my friends told me that INS knows when my friend left US even though he forgot to return his I-94. The reason is my friend's passport/visa was scanned when he left US from the airport. I didn't remember my passport/visa was scanned when I left for China last year. Does anyone know this? Thanks for help.

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• Per pjiang -美西遊子- ♀ (288 bytes) () 08/06/2008 postreply 08:32:56

• Thank you very much for your great help. -xiexie_xiexie- ♀ (0 bytes) () 08/06/2008 postreply 14:11:07

• 回複：Thank you to 美西遊子 and 863211. More questions on I-94, please -863211- ♀ (243 bytes) () 08/06/2008 postreply 11:07:04

• Thank you so much for your great help. -xiexie_xiexie- ♀ (0 bytes) () 08/06/2008 postreply 14:16:50