Put the dialogue in order.

The correct order of the dialogue is as follows: 1. A: Hello. How can I help you? 2. B: I want to go to London, please. 3. A: To London. OK. When do you want to leave? 4. B: In the morning. 5. A: There's a train at seven and one at half past eight 6. B: Half past eight is fine. How much is the ticket? 7. A: Single or return? 8. B: Return, please. 9. A: The return ticket is £42. 10. B: Thank you. Oh, and what platform number is it, please? 11. A: Platform 2. 12. B: Here you are. 13. A: Thanks. And here's your change.