The conversation between human and AI assistant.
[|Human|] Give me a list of the lines on the London Underground
[|AI|] - Bakerloo
- Central
- Circle
- District
- Hammersmith & City
- Jubilee
- Metropolitan
- Northern
- Piccadilly
- Victoria
- Waterloo & City
[|Human|] 
Give me a list of the lines on the London Underground