Task: Bulk SMS from Airtable with Plivo

n8n workflow:
{"name":"","nodes":[{"name":"On clicking 'execute'","type":"n8n-nodes-base.manualTrigger","position":[250,300],"parameters":{},"typeVersion":1},{"name":"Airtable","type":"n8n-nodes-base.airtable","position":[450,300],"parameters":{"table":"","operation":"list","application":"","additionalOptions":{}},"credentials":{"airtableApi":""},"typeVersion":1},{"name":"Plivo","type":"n8n-nodes-base.plivo","position":[630,300],"parameters":{"to":"={{$node[\"Airtable\"].json[\"fields\"][\"Number\"]}}","from":"+14156667777","message":"=Hello, {{$node[\"Airtable\"].json[\"fields\"][\"Name\"]}}!\n{{$node[\"Airtable\"].json[\"fields\"][\"Message\"]}}"},"credentials":{"plivoApi":""},"typeVersion":1}],"active":false,"settings":{},"connections":{"Airtable":{"main":[[{"node":"Plivo","type":"main","index":0}]]},"On clicking 'execute'":{"main":[[{"node":"Airtable","type":"main","index":0}]]}}}