If a customer starts a booking on my white label travel website and leaves before paying, can I see who they were and ring them back?

Yes, in most cases you can, as long as the customer got far enough in the process to type in their name and contact details. A white label portal normally saves an incomplete booking the moment the traveller moves from the search results into the passenger details or payment step. That record sits in your admin area with a status showing it was never paid or never confirmed, and you or your staff can open it, see what was being booked and call the customer back while they are still thinking about it.

Where it will not help you is earlier than that. If someone only ran a search and then closed the browser, there is nothing to call them about, because no name, number or email was ever entered. Those visits show up only as traffic and search activity, not as a person you can contact. If you want a better picture of that anonymous stage, the usual answer is to connect your own web analytics account to the site and look at which routes and cities people are searching for most.

Be honest with yourself about what the data can tell you too. An abandoned booking does not always mean a lost sale, and it does not always mean the customer wants a phone call. Some people drop off because the card failed, some because they were only comparing, and the fare or room they were looking at may no longer be available by the time you reach them, so you may need to requote. How far back these records are kept, and whether your staff can see all of them or only their own, can also depend on your plan and on the permissions you set.

It is worth logging into your admin area, finding the list of pending or unpaid bookings, and agreeing with your team how quickly someone should follow up and what they are allowed to offer when they do.