Possible Clues:

• 'I'll be right there!'
• "Just hang on"
• 'I'll be with you in a jiffy'
• Request for patience
• 'Be there in a jiffy!'
• "Be right with you!"
• Wait a tick for United assistant!
• 'Just a moment'
• 'That's even less than minute, but not in the first place (3,6)'
• 'Not for the first time a little (3,6)'