# Cristina Radu – Cal.com booking page > Cristina Radu offers solutions strategy & optimization services that reshape the approach to supply chain planning software (APS). By having in the team a technical expert which speaks the business language, you increase planning efficiency, decrease implementation costs and increase tool adoption rates. You get focused, industry-specific support to make the right decisions around planning and optimization software, from evaluating your current tools and selecting the right vendor to ensuring a smooth design and implementation (network optimization, production & distribution planning, campaign optimization, packaging optimization etc.). Planning and optimization software is explained in practical, jargon-free terms, making its alignment with your business goals easy to understand and act on. As a result, strategic decisions flow smoothly across all planning levels, from top management to the shop floor, ensuring your software keeps everything aligned and no decision is overlooked. Booking page: https://cal.com/cristinaradu ## Event types - [Working Session](https://cal.com/cristinaradu/discovery-session): 45 min, confirmed instantly, event type id 842828. Details: https://cal.com/cristinaradu/discovery-session.md - [Discovery Session](https://cal.com/cristinaradu/introduction): 30 min, confirmed instantly, event type id 842814. Details: https://cal.com/cristinaradu/introduction.md ## Check availability ```http GET https://api.cal.com/v2/slots?eventTypeId=&start=YYYY-MM-DD&end=YYYY-MM-DD&timeZone= cal-api-version: 2024-09-04 ``` The response is `{"data":{"YYYY-MM-DD":[{"start":""}]}}`; no API key is needed. ## Book Each event type's `.md` document lists its required booking fields and the `POST https://api.cal.com/v2/bookings` request (`cal-api-version: 2026-02-25`). ## More - API docs: https://cal.com/docs/api-reference/v2/introduction