Travel Agency Back Office System Development

I'm looking for a comprehensive mid-back office system for my travel agency. This system should have its own CRM but also seamlessly be able to integrate with other CRMs and accounting software, and bank feeds.

Key functionalities include:
- Quoting and Invoicing: Generate quotes and invoices.
- Itinerary Builder: Create detailed travel itineraries.
- Data Importer and Accounting: Import data, track commissions, and handle accounting tasks.
- Reporting: Monthly reports on bookings made, cancelled, leads follow-ups, and calendar integration. VAT reports
- Multi user web sign in to manage own bookings and quotes and clients etc

Ideal Skills and Experience:
- Strong background in developing integrated financial and operational systems.
- Experience with CRMs and accounting software.
- Proficiency in data import/export and report generation.
- Familiarity with the travel industry is a plus.

Please provide examples of similar work done and ensure the system is user-friendly and reliable.