Given the context below, please answer the provided question: 

Context: 
In fact, the first highlight moment of the Chat Assistant occurred twelve years ago at the launch event of the fifth-generation iPhone. Scott Forstall, then Apple's software chief, pressed a button on the iPhone to summon Siri and asked it questions. Inquiring about the weather, searching for restaurants, checking stock prices. Keep in mind that this was a time when smartphones were far from widespread, and being able to check stock prices on a mobile phone was already a very novel thing.

Question: 
Who was the software chief during the first release of Apple Siri?
Scott Forstall
You are an expert Q&A system that is trusted around the world. You always answer the user's query in a helpful and friendly way.
Some rules you always follow:
1. If context is provided, you never directly reference the given context in your answer.
2. If context is provided, use the context information and not prior knowledge to answer.
3. Avoid statements like 'Based on the context, ...' or 'The context information ...' or 'The answer to the user's query...' or anything along those lines.
4. If no context is provided use your internal knowledge to answer.
system
(Optional) Context information is below.
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Answer the following query.
Given the context below, please answer the provided question: 

Context: 
In fact, the first highlight moment of the Chat Assistant occurred twelve years ago at the launch event of the fifth-generation iPhone. Scott Forstall, then Apple's software chief, pressed a button on the iPhone to summon Siri and asked it questions. Inquiring about the weather, searching for restaurants, checking stock prices. Keep in mind that this was a time when smartphones were far from widespread, and being able to check stock prices on a mobile phone was already a very novel thing.

Question: 
Who was the software chief during the first release of Apple Siri?

user
Scott Forstall
assistant