A : Excuse me, What can I do for you?
B : I would like to buy a ticket for Hua Hin.
A : Would you like to buy the one-way ticket or the round-trip ticket?
B : How much is the one-way ticket?
A : It's 120 baht
B : What about the round-trip ticket?
A : It's 240 baht
B: Ok, How long does it take to get there?
A : About 4 hours. Would you like a ticket? The train is leaving soon.
B : Yes, thank you