Travel Assistant AI App Development

I'm looking for an experienced AI application developer to create a Travel Assistant chatbot for a mobile app. The bot should be capable of providing both text and voice responses.

Key requirements:
- AI chatbot development, specifically for travel assistance
- Integration with mobile platforms
- Capable of handling both text and voice interactions

Ideal Skills and Experience:
- Proficiency in AI and machine learning
- Experience in mobile app development
- Strong background in natural language processing (NLP)
- Knowledge of voice recognition technologies
- Previous experience with travel-related applications is a plus

Please include relevant portfolio work and case studies in your bids.