> For the complete documentation index, see [llms.txt](https://docs.chatalog.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.chatalog.ai/crm-quickstarts/customized-flow/flow-blocks/flow-template-reference/event-reservation-flow.md).
# Event reservation Flow
Event reservation flow: Used to collect participant information for future reference
You need to set up custom field in the ‘Contacts’ page on the right side of Chatalog beforehand. Then, return to the ‘Flow’ page to set up a new process.
Contact page
Custom Fields page
After returning to the flow page, you can create a new process by following the method shown in the image below. (Use the following process blocks: Message Block, User Input, Set Label/Custom Field).”
Since the user input variable {{age}} is stored in the custom field named ‘age,’ you will get the same result whether you enter the user input variable {{age}} or the custom field {{customFields.age}}.
