its being passed on the call request, it is not transient, customer.number is working for forwading caller id but customer.name is not working in the message body

{
"assistantId":"{{1.assistant_id}}",
"assistantOverrides": {
  "variableValues": {{2.json}}
},
"customer": {
  "number": "{{1.phone_number}}",
  "name": "{{1.first_name}} {{1.last_name}}"
},
"phoneNumberId": "{{1.phone_number_id}}"
}