Kuala Lumpur , Malaysia ( CNN ) -- The children keep asking when their mother is coming home . Lee Khim Fatt does n't know what to tell them . It 's been more than three weeks since his wife , a flight attendant on Malaysia Airlines Flight 370 , disappeared along with 238 others when the jet vanished mid-flight . `` I told them mummy 's going to take a bit longer to come home this time , and I even promised them I 'm going to bring her home , '' Lee says . His eyes fill with tears as he explains his plight . It 's a promise he 's not sure he can keep . `` I really do n't know where she is now , '' he says , `` and now I am not sure whether I could bring her home . '' Lee and his wife , Foong Wai Yueng , shared a happy life together , raising their 10-year-old daughter and 4-year-old son . They met 20 years ago when she was just 19 . He was her first boyfriend . Without her , Lee says he 's lost his direction . An 18-year Malaysia Airlines veteran , she loved to fly around the world . The destinations were different , he says , but her returns home were always the same . `` Every time she came back , definitely she got something for the kids , '' he says . `` This is what she loved to do . '' Quest for answers . Dozens of anguished relatives Sunday demanded that Malaysian authorities provide them with evidence of the fate of their loved ones aboard the missing Boeing 777 . `` We want evidence , we want truth and we want our family , '' they chanted at a news conference outside a Kuala Lumpur hotel . While many of the passengers ' families are staying together in hotels , Lee remains at his home waiting for information about the missing flight . On Sunday , the search for Malaysia Airlines Flight 370 turned up fresh potential clues as an Australian aircraft spotted four orange objects in the water . But investigators have n't yet confirmed whether the objects were from the airliner , which officials believe went down in the southern Indian Ocean . Lee said he hears from Malaysia Airlines just once or twice a day , by phone or text message . He 's angry at how the airline has handled the ordeal . Even though his wife was part of the cabin crew , he says he gets more information from the media than the airline . He watches the near-daily press conferences on television . `` The airline management only call us or have some briefing with us , you know , and then they tell us the same thing again as what the press conference told , '' he complained . His frustration has led in part to his decision to hire a Chicago-based law firm . They 've filed a petition on his behalf , seeking records from Boeing and Malaysia Airlines . Amid the confusion , Malaysia said it has done its best with what it has . `` History will judge us as a country that has been very responsible , '' Hishammuddin Hussein , Malaysia 's acting transportation minister , said . The waiting for the families has not been easy . Lee wants the truth about what happened to MH370 . He wants something to tell his daughter , when she asks what happened to her mother . Most of all he wants his wife to come home . `` Of course I 'm still hoping for god 's miracles , '' he says . Families turn grief into action . CNN 's Steve Almasy and Catherine E. Shoichet contributed to this report .
Lee Khim has promised his two children he 'd bring their mother home . His wife , a Singapore Airlines flight attendant , has been missing for three weeks . With little information from authorities , he turns to Lee for updates . He wants to give his children answers , but has none .