I'm thinking of attending a ballet performance at the Opera House this summer and would be grateful for any tips on booking tickets. From what I see on the website, online booking is possible by sending in a request but seats are allotted, you don't get to choose. If I were to telephone would there be any chance of choosing my seat, or of booking at all since the booking period hasn't yet started? I'm also wondering about prices, usually opera is more expensive than ballet, but I haven't been able to work out what the best seats for ballet are likely to cost. I would really appreciate any advice. Thank you!