Conversation phases

There are n types of conversation "phases":

Type	Description
symptom_check	Info here
clarify	Symptoms are currently being clarified
autocomplete_start	Beginning of the consultation where symptoms are being gathered from the user
autocomplete_add	Providing additional symptoms to add to the consultation
duration	Finding out how long the symptoms have been occuring
health_background	Assessing the health background of the user
pre_diagnosis	Provides a disclaimer to the user before presenting them with results