A: Plane tickets are so expensive!
B: I can't afford to fly to San Francisco.
A: Well, we can always go by bus.
B: There's a bus that drives to San Francisco?
A: There are buses that drive to any nearby state.
B: That sounds perfect! How much is the fare?
A: Usually one-fifth of what a plane ticket costs.
B: How do we buy tickets?
A: If we buy them online, they're even cheaper.
B: What bus line do I search?
A: Greyhound buses are the most popular.
B: I'm so glad we'll have a trip after all!