Anglais : Greetings and introductions (verb to be)

You are at an international youth camp. You must engage with three new students: Sarah (from the UK), Kenji (from Japan), and Elena (from Spain). Write a cohesive dialogue of exactly $3$ interaction cycles where you: 1) Greet them, 2) Ask each student their name AND their country of origin explicitly, 3) Conclude the conversation with a polite leave-taking formula. Ensure you use the verb 'to be' correctly, specifically forms like $am$, $is$, and $are$.