Returning briefly to FIG. 14, at 231, computerized intelligent assistant may provide a notification message to conference participants. Using the above example, such notification may be provided by communicatively coupling to a local user device 171 (in the form of a mobile phone) of local participant 161 (Anna) in order to display a message at local user device 171 indicating that three other participants (Beatrice, Carol, and Dan) are expected to arrive but have not yet arrived. More generally, “notification” as used herein refers to any suitable notification and/or acknowledgement signal. “Notification message” is used herein to refer to any suitable means of notification, e.g., an electronic message sent via any suitable protocol (e.g., Short Message Service (SMS), email, or a chat protocol), an audio message output at companion device, an audio message output at computerized intelligent assistant 1300 or a different computerized intelligent assistant.