[task] Conversation Summarization & QA

### 🚀 The Task

Given a chat transcript, the model should be able to summarize it or answer questions about it.

### Example

Summary:
```
Summarize the following chat log:

: How is your day going?
: Great! I purchased a goose just now.

Summary:
```

Question-Answering:
```
Given the following chat log, answer the provided question:

: How is your day going?
: Great! I purchased a goose just now.

Question: What did purchase?
Answer:
```

### Additional Notes

* Google Sheets Reference: [CarperAI: Instruct-GPT Tasks](https://docs.google.com/spreadsheets/d/1q6I0PLcgvNjcls3z7diUOoDGmNojUW-m6KhX2ijuSEE/edit?usp=sharing)