Sometimes there are multiple assignments happen in a conversation and the manager would like to know the first response time of the last assignee of the conversation in order to generate an accurate user performance report.
However, the current $conversation.first_response_time only tracks the first response time of the first assignee.
So it would be good if we can have a new trigger variable (e.g. $conversation.first_response_time_by_last_assignee) to track the first response time of the last assignee as well.