Possible Clues:

• Texter's "Gimme a sec"
• "Gimme a sec," in a text
• Texter's 'Hold that thought'
• "Leaving the chat for a sec"
• Texter's "Need a short break"
• Texter's 'I will return shortly'
• Texter's "I will return shortly"
• 'Hold on a sec,' in texts
• "Hold on a sec," in texts
• 'Gimme a sec,' in chats