10 Korean expressions about "airplane travel."

1. 항공권 예약을 하고 싶습니다. I want to book a flight ticket.
2. 왕복 항공권으로 구매할게요. I'll buy a round-trip ticket.
3. 출발 날짜와 도착 날짜를 알려주세요. Please let me know your departure and arrival dates.
4. 좌석 등급은 어떻게 하시겠어요? What seat class would you like?
5. 수하물 규정을 확인해 주세요. Please check the baggage regulations.
6. 변경이나 취소 수수료가 있나요? Are there any fees for changes or cancellations?
7. 마일리지 적립이 가능한가요? Is mileage accumulation possible? 
8. 탑승 수속은 어디서 하나요? Where do I check-in for my flight?
9. 좌석 배치는 어떻게 되나요? How is the seat arrangement?
10. 기내식은 제공되나요? Is an in-flight meal service available?

1. 항공권 예약을 하고 싶습니다. I want to book a flight ticket.

항공권: Airline ticket (일반 명사).
예약: Reservation (일반 명사).
을: Object marker (목적격 조사).
하다: To do (동사). 동사(Verb)
하(어간)고(연결어미). 어간(Stem of a word), 연결어미(Connective ending of a word)
싶(보조용언)습니다(종결어미). 보조 용언(Auxiliary predicate), 종결어미(Ending of a sentence)
보조 용언(Auxiliary predicate:xiy verbAuㅁ

• It cannot be used alone and must be used with the main verb.
• It cannot express tense or honorific expressions.
• The tense or honorific expression of the main verb is reflected.
• It supplements the meaning of the main verb or changes the structure of the sentence.
• It indicates that the action of the main verb is completed or in progress.
• It emphasizes the object of the main verb or adds a negative meaning.

[Korean Grammar]
V + 고 싶다. (Want to)
This pattern is used if the subject is the first and second person. 
나는 영화를 보고 싶다. (I want to watch a movie).
V + 고 싶어하다.
This pattern is used if the subject is the third person.
제 친구는 한국에 오고 싶어해요. (My friend wants to visit Korea).