Halon offers two services.
The Halon Tax Return only service does have an option to purchase CPA support via chat for the return you are working on. That option can be found on the left hand side in orange. The support is only via chat for the return you are working on.
Halon Private Client offers a dedicated CPA to your account year round. You can connect with the CPA via chat, email, or phone. Its a great deal for anyone that wants CPA support and advice throughout the year, not just while preparing your return.