Column 	conversationId	sendTime	senderType	text	agentId (optional)	
Explanation	Every message that belongs to the same conversation should have the same conversationId.   Format is up to you.	Timestamp of the moment the message was sent.  Format here follows ISO 8601.   See below for example:	This lets the bot know which message comes from whom. Can only have "agent" and "visitor".	The actual message that was sent	Identifier for a specific customer service agent. Used for agent statistics.	
	12345	2021-03-22T04:55:51+00:00	visitor	Hi		
	12345	2021-03-22T04:56:51+00:00	agent	Hello hello	joyce@ultimate.ai	
	23456	2021-03-23T09:57:51+00:00	visitor	how are you		
	23456	2021-03-23T09:58:51+00:00	visitor	is anyone present?		
	23456	2021-03-23T09:59:51+00:00	agent	I'm here!	bot@ultiamte.ai