Task: Find emails with Dropcontact on Typeform submission

n8n workflow JSON:
{"nodes":[{"name":"Typeform Trigger","type":"n8n-nodes-base.typeformTrigger","position":[140,200],"webhookId":"","parameters":{"formId":""},"credentials":{"typeformApi":{"id":"","name":""}},"typeVersion":1},{"name":"Slack1","type":"n8n-nodes-base.slack","position":[1360,300],"parameters":{"text":"🥳 An existing lead has just subscribed!","channel":"","attachments":[],"otherOptions":{}},"credentials":{"slackApi":{"id":"","name":""}},"typeVersion":1},{"name":"Airtable - Contact List","type":"n8n-nodes-base.airtable","position":[540,200],"parameters":{"table":"Contacts","operation":"list","returnAll":false,"application":"","additionalOptions":{"fields":[],"filterByFormula":"=fullName=\"{{$json[\"full_name\"]}}\""}},"credentials":{"airtableApi":{"id":"","name":""}},"executeOnce":false,"typeVersion":1,"alwaysOutputData":true},{"name":"Airtable - Update Contacts1","type":"n8n-nodes-base.airtable","position":[1150,300],"parameters":{"id":"={{$node[\"Airtable - Contact List\"].json[\"id\"]}}","table":"Contacts","fields":["firstName","lastName","linkedInProfile","Email","Phone","website","LinkedIn Company","Industry","Address"],"options":{"typecast":true},"operation":"update","application":"","updateAllFields":false},"credentials":{"airtableApi":{"id":"","name":""}},"typeVersion":1},{"name":"Slack","type":"n8n-nodes-base.slack","position":[1360,100],"parameters":{"text":"=🎉 A new lead has just subscribed!","channel":"","attachments":[],"otherOptions":{}},"credentials":{"slackApi":{"id":"","name":""}},"typeVersion":1},{"name":"Set - Contacts to update","type":"n8n-nodes-base.set","position":[940,100],"parameters":{"values":{"string":[{"name":"firstName","value":"={{$node[\"Dropcontact\"].json[\"first_name\"]}}"},{"name":"lastName","value":"={{$node[\"Dropcontact\"].json[\"last_name\"]}}"},{"name":"linkedInProfile","value":"={{$node[\"Dropcontact\"].json[\"linkedin\"]}}"},{"name":"Email","value":"={{$node[\"Dropcontact\"].json[\"email\"][0][\"email\"]}}"},{"name":"Phone","value":"={{$node[\"Dropcontact\"].json[\"phone\"]}}"},{"name":"website","value":"={{$node[\"Dropcontact\"].json[\"website\"]}}"},{"name":"LinkedIn Company","value":"={{$node[\"Dropcontact\"].json[\"company_linkedin\"]}}"},{"name":"Industry","value":"={{$node[\"Dropcontact\"].json[\"naf5_des\"]}}"},{"name":"Address","value":"={{$node[\"Dropcontact\"].json[\"siret_address\"]}}, {{$node[\"Dropcontact\"].json[\"siret_zip\"]}} {{$node[\"Dropcontact\"].json[\"siret_city\"]}}"}]},"options":{"dotNotation":true}},"typeVersion":1},{"name":"Dropcontact","type":"n8n-nodes-base.dropcontact","position":[340,200],"parameters":{"email":"=","options":{"siren":true,"language":"fr"},"additionalFields":{"company":"={{$json[\"and your company ?\"]}}","website":"={{$node[\"Typeform Trigger\"].json[\"tell me more... What's your website ?\"]}}","last_name":"={{$json[\"Hi [field:1c6436830dfffbf1], what's your last name ?\"]}}","first_name":"={{$json[\"First, what's your name?\"]}}"}},"credentials":{"dropcontactApi":{"id":"","name":""}},"typeVersion":1},{"name":"Contact ID empty ?","type":"n8n-nodes-base.if","position":[730,200],"parameters":{"conditions":{"string":[{"value1":"={{$json[\"id\"]}}","operation":"isEmpty"}]}},"typeVersion":1,"alwaysOutputData":true},{"name":"Airtable - Create Contacts","type":"n8n-nodes-base.airtable","position":[1150,100],"parameters":{"table":"Contacts","options":{"typecast":true},"operation":"append","application":""},"credentials":{"airtableApi":{"id":"","name":""}},"typeVersion":1},{"name":"Set - Contacts to create","type":"n8n-nodes-base.set","position":[940,300],"parameters":{"values":{"string":[{"name":"firstName","value":"={{$node[\"Dropcontact\"].json[\"first_name\"]}}"},{"name":"lastName","value":"={{$node[\"Dropcontact\"].json[\"last_name\"]}}"},{"name":"linkedInProfile","value":"={{$node[\"Dropcontact\"].json[\"linkedin\"]}}"},{"name":"Email","value":"={{$node[\"Dropcontact\"].json[\"email\"][0][\"email\"]}}"},{"name":"Phone","value":"={{$node[\"Dropcontact\"].json[\"phone\"]}}"},{"name":"website","value":"={{$node[\"Dropcontact\"].json[\"website\"]}}"},{"name":"LinkedIn Company","value":"={{$node[\"Dropcontact\"].json[\"company_linkedin\"]}}"},{"name":"Industry","value":"={{$node[\"Dropcontact\"].json[\"naf5_des\"]}}"},{"name":"Address","value":"={{$node[\"Dropcontact\"].json[\"siret_address\"]}}, {{$node[\"Dropcontact\"].json[\"siret_zip\"]}} {{$node[\"Dropcontact\"].json[\"siret_city\"]}}"}]},"options":{"dotNotation":true}},"typeVersion":1}],"connections":{"Dropcontact":{"main":[[{"node":"Airtable - Contact List","type":"main","index":0}]]},"Typeform Trigger":{"main":[[{"node":"Dropcontact","type":"main","index":0}]]},"Contact ID empty ?":{"main":[[{"node":"Set - Contacts to update","type":"main","index":0}],[{"node":"Set - Contacts to create","type":"main","index":0}]]},"Airtable - Contact List":{"main":[[{"node":"Contact ID empty ?","type":"main","index":0}]]},"Set - Contacts to create":{"main":[[{"node":"Airtable - Update Contacts1","type":"main","index":0}]]},"Set - Contacts to update":{"main":[[{"node":"Airtable - Create Contacts","type":"main","index":0}]]},"Airtable - Create Contacts":{"main":[[{"node":"Slack","type":"main","index":0}]]},"Airtable - Update Contacts1":{"main":[[{"node":"Slack1","type":"main","index":0}]]}}}