DateTimeFromToMessage
2014-08-18 04:02:05 AM guest enter the chat room
2014-08-18 04:02:48 AM guest left the chat room
2014-08-18 08:56:09 AM guest enter the chat room
2014-08-18 08:56:24 AM guest hi
2014-08-18 08:57:22 AM guest left the chat room
2014-08-18 08:59:24 AM guest enter the chat room
2014-08-18 08:59:42 AM guest left the chat room