conversation_id,user,message
conversation_1,User 1,Message 1 from User 1
conversation_1,User 1,Message 2 from User 1
conversation_1,User 1,Message 3 from User 1
conversation_1,User 1,Message 4 from User 1
conversation_1,User 1,Message 5 from User 1
conversation_2,User 2,Message 1 from User 2
conversation_2,User 2,Message 2 from User 2
conversation_2,User 2,Message 3 from User 2
conversation_2,User 2,Message 4 from User 2
conversation_2,User 2,Message 5 from User 2
conversation_3,User 2,Message 1 from User 2
conversation_3,User 1,Message 2 from User 1
conversation_3,User 1,Message 3 from User 1
conversation_3,User 2,Message 4 from User 2
conversation_3,User 1,Message 5 from User 1
conversation_4,User 1,Message 1 from User 1
conversation_4,User 2,Message 2 from User 2
conversation_4,User 1,Message 3 from User 1
conversation_4,User 2,Message 4 from User 2
conversation_4,User 2,Message 5 from User 2
conversation_5,User 2,Message 1 from User 2
conversation_5,User 2,Message 2 from User 2
conversation_5,User 2,Message 3 from User 2
conversation_5,User 2,Message 4 from User 2
conversation_5,User 2,Message 5 from User 2