Some steps for those who are still unfamiliar to buy an online ticket..
1. If you are not sure what kind of ticket you want to but, you can klik www.google.com and type the ticket that you want to buy eg. Singapore Airline ticket.
2. Klik the website.. Search online ticket (for performances) or booking online (for transportation)..
3. Make sure you clik the correct place and date..
4. You have to check also the price.. Buying an online ticket is better than buying via agent since the price will be much cheaper.
5.If you have selected all the categories they have asked, you will be asked about your personal detail.. Your name, address, email, phone number.
6. In the last stage, you will be asked about payment detail. You must have credit card such as Master Card, Visa etc. Just type your detail and security code.
7. After following those stages, you can check your email. Usually, the iterinary/the ticket will be sent via email. You should print the iterinary or the ticket since you have to show the the iterinary/the ticket by the day you go there (eg. at the airport).