A good lead in / warm up would be whole class. Have the students listen to you recite with another high level student, a basic dialogue. They write down the info. into columns for each category. Name / nationality etc....
Then repeat with other students to check/record.
See the Lessons in a Can on our community EFL Classroom 2.0 for the Big town / little town cards and how to use in an interview. This would be perfect. Students could then interview each other using a new identity.
I also like giving students different information. They then walk around asking for the information - Is your phone number 265-7868? If they find a match, they link arms and continue.....make matching cards and distribute for each student.