You are building a customer support chatbot that needs to understand natural language intent (e.g., 'book a flight'). Which service provides Natural Language Understanding (NLU) capabilities?

Which Google Cloud service provides a platform for building conversational interfaces (chatbots and voice bots) that use natural language understanding?

What is an 'Intent' in Dialogflow?

Which Dialogflow feature allows the bot to extract specific data types (like dates, numbers, or names) from a user's sentence?

What is 'Fulfillment' in Dialogflow used for?

What is a 'Context' in Dialogflow and why is it used?