Do-IT-SELF
My friend bought an airline ticket from Air Canada, then she wanted to change return date, then She asked Lao Zhang to help her change return date. Here is Lao Zhang's advice or tips:"DO-IT-SELF." that means if you asked travel agency (or agents) to do , then they will charge you extra service fee. In order to SAVE money, PLEASE DO NOT ASK TRAVEL AGENTS to do change date or other things which you can do it by self --- How can you do it by self ? JUST CALL Airlines directly. OR Ask Lao Zhang. He will tell you how you can do it by self without extra fees. Lao Zhang's service is free.