This relates to systems and processes for operating an automated assistant to process messages. In one example process, an electronic device receives a communication including a text string and determines whether a portion of the text string is associated with a data type of a plurality of data types. The data type is associated with at least one task. In accordance with a determination that the portion of the text string is associated with the data type, the electronic device receives a user input indicative of a task of the at least one task, and in response, causes the task to be performed based on the portion of the text string. In accordance with a determination that the portion of the text string is not associated with the data type, the electronic device foregoes causing the task to be performed based on the portion of the text string.