text: Tom: Hey, I've got a question
  Tom: You have knowledge about guitars and guitar accessories
  Tom: I want to buy new strings for my electric guitar and I need your expertise
  Tom: What strings should I buy?
  Luke: Well, it depends what music do you want to play and what kind of sound do you want to achieve
  Luke: But if you are beginner i recommend you D'Addario strings with thickness 10.,
  Luke: They are universal, so every kind of music sound ok with them
  Luke: But before you put on new strings, be sure to clean the fretboard. In music store you can buy a special lotion for this.
  Tom: Thanks!
  Luke: No problem. See ya.
  Tom: Yo!
target: Tom wants to buy new strings for his electric guitar. Luke recommends D'Addario strings with thickness 10 for beginners. He also urges Tom to clean the fretboard before putting on the new strings.