@Hicham Char Thank you for that.

You can use Twilio virtual number

It’s a prompt issue. If you can post it here, we will understand better. Just like @Titus Blair suggested, tell ChatGPT what you want, it will update your prompt. Tweak it bit by bit until you are satisfied. Make sure you are using a good LLM model. My suggestions: You need to explicitly define your tools (nodes) in the prompt properly, and set rules on when and how each tools should be called. Also some of the biggest common problems are having contradictory sentences/statements redundant lines that may confuse your prompt not to use your tool. You may not notice easily but they may be there. You have to look out for them. For instance, this is just a little example for checking calendar availability and booking appointments. Tools are defined after the overview. The system will have to check availability before booking the appointment. If the slot is taken, it suggests 2 free slots for the day, otherwise it books the appointment immediately. ## Tools Available 1. **Check Calendar Availability** (what you named your Google Calendar Get Events node) – Verify if the requested time slot is free. 2. **Book the Appointment** – Create/book the event if slot is free. Must return "status": "confirmed" or "status": "failed". 3… ## Rules ### Step 1: Requested Slot - Always use "Check Calendar Availability" with the requested date and time. - If the response is [] (empty), the slot is free → immediately call the "Book the Appointment" (proceed to booking). - Expect "status": "confirmed". - … ### Step 2: If Requested Slot is Unavailable - If the requested slot is taken (not free), generate up to 2 alternative times. - Before suggesting them, re-check each one with Check Calendar Availability to make sure it is truly free. - Present them clearly to the client. ### Step 3: … The order is important. The agent will have to use the Check Calendar Availability tool first before booking the appointment. Usually Google Calendar Get Event node (your Check Calendar Availability too) doesn’t return anything (it’s empty) if the requested slot is free.

That’s great.

Using OCR is the best option. There are popular ones like Mistral OCR, and LlamaParse. I think you should go with Google Gwmini Vision. From my experience, Gemini Vision is the best option among the three as the other two may not extract all the data/info from the scanned documents (depending on your document). For instance, if you are working with blurry documents or embedded text in a logo or something like that, Gemini Vision will always perform better than Mistral OCR or LlamaParse. But if you are working with very well structured documents, you can use any of them.