Related Clues:

• Answer the host, for short
• Say you'll attend, say
• ___ all (email option sometimes causing office problems)
• Request in an invitation
• Request made in French initials
• Thread part
• Say yes or no, say
• Click 'Going' on a Facebook event, e.g
• Write back as requested
• "Let us know if you're coming" on an invitation
• Send regrets, say
• 'Let me know' letters
• Interrogator's request
• Say 'Yeah, I can make it,' say
• "I'll be there" message, e.g