Does Bedrock have an "Assistant" offering, where you can create a chatbot for a specific subject or task?

OpenAI has a concept of Assistants where you can create a chatbot for a specific subject/task etc. Ideally we'd like to use something similar on Bedrock, where we could create an Assistant for a specific purpose for example, for a particular health issue prompt, we can create an Agent Type 1 that address that specific issue (weight loss-related), Agent 2 (nutrition advice), Agent 3 (how to manage stress) [Note: these are made up examples]. By allowing us to create these very well scoped Assistants this would provide excellent safeguarding, enable them to be repurposed for different customers and changes to be made more easily. I was wondering if Amazon Bedrock have a similar offering? Thank you.