Sentence:  Charlie Marble was back and forth on several occasions , first to confer with Andy on the advisability of cancelling the <WSD>Las</WSD> Vegas engagement - they decided it was wise - and later to announce that a prominent comedian , also an agency client , had agreed to fill the casino 's open date . 
Meaning of the word marked with <WSD> tags:  largest city in Nevada; located in southeastern Nevada; originally settled by Mormons but is now famous for entertainment and gambling and general excess