@Kavish I'm sorry to hear you're having trouble assigning the 11 Labs voice to your assistant. To assist you effectively, I'll need a bit more information. Could you please provide me with the exact API request you're making, including the payload and headers (without any sensitive information like your actual authorization token)? This will help me understand if there's an issue with the request format or the parameters you're using. Once I have that information, I'll be able to guide you through the correct process to assign the voice to your assistant.