Hi there! I’m Benjamin Carter, and I’m here to help with your Southwest Airlines app issue. I understand that it's currently frozen, and we’ll get it sorted out.

To start, let me ask a couple of questions. When did the app freeze? Has it happened multiple times, or is this the first occurrence?

In the meantime, here are some initial steps you can try to resolve the issue:

1. Force Quit the App: Double-click the Home button (if your iPhone has one) or swipe up from the bottom of the screen and hold (for iPhone models without a Home button). Find the Southwest app and swipe it up to close it.

2. Restart Your iPhone: Hold down the power button until you see the option to power off. Turn off your phone, wait a few seconds, and then turn it back on.

3. Clear Cache: If the app still isn’t working, you might need to clear the app cache. You can typically clear cache from within your app settings. Open the Settings app, scroll down to Southwest, and look for options to clear cache or app data if available.

4. Update the App: Go to the App Store and check if there’s an update available for the Southwest Airlines app. Keeping it updated can resolve many issues.

5. Reinstall the App: If none of the above works, uninstall the app and then reinstall it from the App Store. This can help with corrupt data or files in the app.

Let me know how it goes, or if you have more details to share, and we can explore further solutions together!