How to get OpenAI block to see Variables from Google Sheet?

Hello! My Variables are coming from Google sheet correctly - they show up in the chat when they are hard coded in the opening text bubble. But OpenAI Assistant block does not see them when interacting with user. Claude suggested setting up a new Variable earlier in the workflow. userProfile. But it did not work - see below.

Has anyone gotten the OpenAI Assistant block to see variables from a Google Sheet? If so, how did you make this happen? Thanks much! (I am no-coder but eager to learn whatever must be learned to succeed 😉

-- From Claude:

Set A New Variable earlier in the workflow:
userProfile
The user's name is {{getGoogleSheetData.firstName}}. They are {{getGoogleSheetData.age}} years old. Their profession is {{getGoogleSheetData.profession}}.

Message:
System: {{userProfile}}

Function:
return {
firstName: params.firstName,
age: params.age,
profession: params.profession,
conversation: params.conversation
}