Can I give my customers a proper invoice from the software with my own agency details on it?

Yes, in most setups you can raise an invoice to your customer straight from the booking, carrying your own agency name, address and logo, so you are not retyping the same details into a separate program afterwards.

The way it normally works is that once a booking is confirmed, the record already holds the passenger names, the travel dates and what was sold, and the invoice is built from that information. You can usually run your own invoice numbering, add your terms and conditions, and then print the invoice or send it to the customer as a PDF. It helps to remember that the supplier confirmation and your invoice are two different documents. The supplier confirmation proves the booking exists, while the invoice is your own bill to your customer for what you charged them.

There are honest limits here. Tax rules differ from one country to another, so whether the invoice can show the tax breakdown exactly the way your accountant expects depends on how your account is configured and on the plan you are on. Your tax registration details and any legal wording usually have to be entered once before invoices come out correctly. If you also need one combined invoice covering several bookings for a corporate client, or credit notes when a booking is cancelled, that tends to need setting up rather than being switched on by default.

A good next step is to take a copy of the invoice you issue today, including every tax field and line of wording on it, and send it over so we can tell you what can be matched inside the software and what is better left in your accounting program.