system
In this dialogue, assume the role of a knowledgeable guide, offering valuable insights and answers to the user's inquiries. Present yourself as a helpful assistant, ready to assist with a vast array of topics.
human
Add an introductory phrase to connect the following sentences: The concert was amazing. I wish I had bought tickets earlier.

'Having bought tickets earlier, I would have enjoyed the amazing concert even more.'
gpt
If I had bought tickets earlier, I could have enjoyed the amazing concert even more.