| 1 | Save some energy for the trip down. | |
| 2 | The aircraft can take off on time. | |
| 3 | Do you have a preference for your return flight? | |
| 4 | A Do you have a preference for your return flight? | |
| 5 | Carbon-offset programs will grow in popularity, along with efforts to reduce the number of jets flying empty on return trips. |
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