Can I give my staff their own logins so they only see what they need and cannot change my prices?

Yes, you can normally give each member of your staff a separate login and control what each one is allowed to see and do, so your pricing and settings stay in your hands.

In most setups this works through roles. A booking agent can search, quote and make bookings for customers, but cannot open the markup settings or see what the supplier charged you behind the scenes. Someone handling accounts can look at payments, refunds and reports without being able to issue or cancel tickets. Only you, as the owner or main administrator, add new staff, remove people who leave and decide who sits in which role. Most systems also keep a record of which login made or changed each booking, which is useful when you need to trace a mistake or settle a question with a customer.

How finely you can control this does depend on the software and the plan you are on. Some systems give you ready made roles that you pick from, while others let you tick individual permissions one by one. The number of staff logins you get can also be tied to your plan, and a few actions, such as changing bank or gateway details, are usually locked to the administrator no matter what. It is worth being clear about this before you assume a particular split of duties will be possible.

The best next step is to write down who in your office needs to do what, including your accounts person and any part time staff, then ask to see the roles and permissions screen on a demo login so you can check it matches how your agency actually works.