  Intelligent conversational agents and virtual assistants, such as chatbots
and voice assistants, have the potential of augmenting health service capacity
to screen symptoms and deliver healthcare interventions. In this paper, we
developed voice-based conversational agents (VCAs) in the Google Actions
Console to deliver periodic self-assessment health surveys. The focus of this
paper is to accommodate self-monitoring for patients with specific fluid
consumption requirements or sleep disorders. Our VCAs, named FluidMonitor and
Sleepy, have been tested to integrate naturally into a patient's daily
lifestyle for the purpose of providing useful interventions. We show the
functionality of our Google Actions and discuss the considerations for using
VCAs as an at-home self-reporting survey technique. User testing showed
satisfaction with the ease of use, likeability, and burden level of the VCAs.
