Can I send my customer an invoice from the system with my own company name on it?

Yes, you can raise an invoice for a booking from inside the system, and it carries your own agency name, logo and address rather than anyone else's. Your customer sees a document that looks like it came from your business, which is the whole point of running your own portal.

In most setups the invoice pulls the booking details across on its own, so you are not retyping anything. The passenger or guest names, the travel dates, the service you sold and the total your customer is paying all come through from the booking record. You can then email it straight to the customer or download it as a PDF to send yourself or print for your file. There is normally room to add your terms and conditions and your tax registration details, so the paperwork matches what your accountant expects to see.

There are a few honest limits. How much of the layout you can change yourself depends on your plan, as some invoice designs are fixed and others are fully editable. Tax rules differ from one country to another, so if your invoice has to follow a particular legal format, that may need a one time setup before you start issuing them. It also helps to remember that your invoice is a separate document from the supplier paperwork such as the airline ticket or the hotel voucher, and your customer may receive both.

The best next step is to make a test booking in your portal, generate the invoice from it, and tell us anything your accountant wants added or worded differently.