How create a sophisticated voice bot using ChatGPT?

I’m wondering how to develop a voice bot (natural language/not robotic voice like GPT 4o) using ChatGPT. With fully customized solution. For example, to order a taxi ride, the bot should ask for the destination, analyze the route, evaluate drivers, and send notifications to the drivers. It should all be done in one conversation.

Would you value someone doing it for you?