100% agree with devmik here. Botpress is great and it looks like you can do it for free. Botpress has a free plan which for you means that you get 100MB vector database storage which should just be enough for you. You also get a generous $5 in free AI credits which should be more than enough. Botpress allows you to create a customizeable chatbot to fit your needs. If you want it to be able to have a higher correct response rate it is also possible. All in all there isn't really anything as good for the price as Botpress right now + we have the best community for helping people.