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How to cancel my invoice issued for booking that does not come

Hi I want a help.Can I know how to cancel invoice issued for booking that does not come.I forgot to mark it as no show booking and invoice was issued in 3rd of January.The booking was held from 5 to 7 December .I saw the invoice on 19 th of January .The invoice is overdue on 16th January .Please tell me how to cancel the invoice