A work around do do this is set up a fallback when your bot can answer the question. As an option you can ask the user to try asking in a different way or give the option to talk to an agent.
As the answer for the second option, you can provide an email for contact or even send a link to a conversation on WhatsApp, Messenger, or any other contact platform you may have. If you need help with that send me a DM and I'll assist with what I know