Buying tickets at the tickets office

Elisabet: Hello, have you got tickets for the zoo?

Vicky: Yes, of course. How many tickets?

Elisabet: two please.

Vicky: How old are you?

Elisabet: I'm 13

Vicky: You're adult, you're prize is 10 pounds.

Elisabet: Ok here you are.

Vicky: thanks.

Elisabet: bye