In Voiceflow, you can capture the name of a user by using a Capture Step and creating a new variable to store the user's name. Here's how you can do it:
Add a Capture Step to your flow. The Capture Step is used to record and store a user's entire utterance (user reply) within a selected variable.
Once you've added the Capture Step, select 'Entire User Reply'. This will capture the entire response from the user.
Choose the variable you want to use to store the user’s reply response. In your case, you can create a new variable and name it something like "userName" or "user_name". This variable will hold the user's name.
Now, whenever a user interacts with your Voiceflow project, their name will be captured and stored in the variable you created.
Remember, the name of the variable should represent the kind of information the variable will hold. In this case, since we're capturing a user's name, we named the variable "userName" or "user_name".
Also, note that the Capture Step can also be used to capture specific entities within your user's response. This option lets you extract specific pieces of information out of your user’s utterance (e.g. name, plan type, country). However, for capturing a user's name, capturing the entire user reply should suffice.
For more information on how to use the Capture Step, you can refer to this Voiceflow documentation.