Related Clues:

• Not up in the air
• Fully confident
• ''It would be my pleasure!''
• Without reservation
• "Be glad to"
• "OK, fine"
• "My pleasure"
• ''I'd be happy to!''
• Unerring
• Casual affirmative
• ''Certainly''
• 'My pleasure'
• "OK!"
• 'Okay'
• Definite