You can still shift your domain to the TravClan-powered website. For this, you will be required to share your domain name (eg: http://www.xyztravels.com) and will have to shift the CNAME record-setting. You can directly connect with your Account Manager who will help you throughout the entire process.
Please note, that your own website will stop working once the CNAME record-setting is shifted to TravClan. This is because two different websites cannot run on the same domain name.