George: Oh, I see a ticket-office. Good morning!Clerk: Good morning!George: I want three tickets to Boston for tonight.Clerk: Three single or three round tickets?George: Three round trip tickets, please.Clerk: What class would you prefer?George: First class, please.Clerk: Here they are. Your train is leaving at 23.05.George: Thank you very much. Does the train arrive in Boston at 09.00?Clerk: Yes, you are right.George: Thank you for your help.Clerk: I wish you a pleasant journey.