Exchanges, but not refunds, are available for...

Exchanges, but not refunds, are available for the Kirov Ballet’s final two performances at the Orange County Performing Arts Center in Costa Mesa because of a switch in casting: Altynai Assylmuratova and Konstantin Zaklinsky now will dance on May 23 at 8 p.m., and Zhanna Ayupova and Andris Liepa will dance May 24 at 2 p.m., instead of the other way around as originally announced. Tickets may be exchanged but a fee of $1 per ticket will be charged. (714) 556-2787.