DateTimeFromToMessage
2016-04-15 06:36:35 PM saosao enter the chat room
2016-04-15 06:37:42 PM saosao left the chat room
2016-04-15 11:45:39 PM saosao enter the chat room
2016-04-15 11:45:49 PM saosao left the chat room
2016-04-17 12:06:18 AM saosao enter the chat room
2016-04-17 12:06:38 AM saosao left the chat room