Dialogue: Asking for travel information

Sílvia: Hello, a return ticket to Exeter, please.
Franc: Ok, but you need to change at Didcot.
Sílvia: That's fine. How long does the journeylist take?
Franc: About four hours.
Sílvia: How much is a return ticket?
Franc: It depends. How old are you?
Sílvia: I'm fourteen.
Franc: Well, you need a child's ticket. Then that's $23.15
Sílvia: Thanks.