Add itinerary tickets code

[Imbiber]

• [x] I have read CONTRIBUTING.md.
• [x] This pull request is all my own work -- I have not plagiarized it.
• [x] All filenames are in PascalCase.
• [x] All functions and variable names follow Java naming conventions.
• [x] All new algorithms have a URL in their comments that points to Wikipedia or other similar explanations.

[Imbiber]

In general code looks good - no need for some big changes. Here are my small suggestions (some of them will fix the CI errors). You probably know its - It is enough to click Commit suggestion button.

@vil02 can you help me out. I tried, but failed to correct the error last time , you providing me changes has given me hope. It still failed Clang format linter / build (pull_request) . How to solve it?

[vil02]

@Imbiber regarding clang-format, please have a look at: https://github.com/TheAlgorithms/Java/pull/4438#issuecomment-1741399556

It seems that you need to change the order of the imports (cf. log) - this can be done by hand.

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This pull request has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contribution!

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