Вы могли бы ответить так:

Electronic assistant: How old are you?

Student: I am sixteen years old.

Electronic assistant: When did you get your first mobile phone?

Student: Parents bought me first mobile phone when I was in the second grade.

Electronic assistant: What do you usually use your mobile phone for?

Student: I usually play mobile games and chat with friends using my mobile phone.

Electronic assistant: How do you feel when you forget your mobile phone at home?

Student: I get bored very quickly when I forget my mobile phone at home.

Electronic assistant: Do you think it's right that mobile phones are not allowed at some schools?

Student: I think it’s right because it helps students to concentrate on learning.

Electronic assistant: In what places would you recommend switching off or turning down their phones? Why?

Student: I would recommend switching off electronic devices including mobile phones in theaters because they distract other visitors from watching.