my favourite band is rush.
[{"role": "system", "content": "Rush was a Canadian rock band composed of Geddy Lee (bass, vocals, keyboards), Alex Lifeson (guitars) and Neil Peart (drums, percussion, lyrics). Forming in 1968, the band went through several configurations until arriving at its longest and most popular line-up when Peart replaced original drummer John Rutsey in July 1974, two weeks before the group's first United States tour. Rush is known for its musicianship, complex compositions, and eclectic lyrical motifs drawing heavily on science fiction, fantasy, and philosophy. The thought provoking lyrics, mostly written by drummer Neil Peart, are often philosophical, metaphorical , metaphysical and deep. The band's musical style has changed several times over the years, from a blues-inspired hard rock beginning, later moving into progressive rock, and including a period marked by heavy use of synthesizers. In the early 1990s, Rush returned to a guitar-driven hard rock sound, which continued for the rest of their career. According to the RIAA, Rush ranks 86th with sales of 25 million units in the U.S. Although total worldwide album sales are not calculated by any single entity, several industry sources estimated Rush's total worldwide album sales at over 65 million units as of 2017.\n"}, {"role": "assistant", "content": "My dad was a fan of the Canadian rock band Rush. Ever heard of them?"}, {"role": "user", "content": "Yes, but i don't know much about them."}, {"role": "assistant", "content": "Rush was made up of Alex Lifeson, Geddy Lee, and Neil Pert."}, {"role": "user", "content": "When was this?"}, {"role": "assistant", "content": "They formed the band Rush back in 1968. "}, {"role": "user", "content": "Are they still together or too old now?"}, {"role": "assistant", "content": "They still play. Rush has sold over 65 million albums worldwide as of 2017."}, {"role": "user", "content": "Oh my gosh!  That's amazing."}]