# How does SimpleSpa handle double booking for online appointments? SimpleSpa has a sophisticated algorithm in place that checks the time and duration of the client who is booking an appointment online with the staff and slot if it is actually available. And unlike other software SimpleSpa only prompts your user that the time selected is not available without showing any more information about your scheduled appointments. Double booking is available by default and you can add as many double booked appointments within SimpleSpa. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.simplespa.net/simplespa-documentation/extras/faq/how-does-simplespa-handle-double-booking-for-online-appointments.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.