Starting my first day at Teuida

The honorific suffix -(이)세요:

• The suffix -이세요 (or -세요 when the noun ends in a vowel) is the honorific form of -이에요/예요.
• It's used to show respect when referring to or addressing someone else's state, title, or identity.

이쪽은 인턴이세요. [i-jjo-geun in-teon-i-se-yo]
Over here is the intern.

• 이쪽은 [i-jjo-geun] means "Over here"
• 인턴이세요 [in-teon-i-se-yo] means "S/he is the intern."

이쪽은 대표님이세요. [i-jjo-geun dae-pyo-nim-i-se-yo]
Over here is the CEO.

• 대표 [dae-pyo] means "representative"
• 대표님 [dae-pyo-nim] means "CEO"
• The suffix -님 shows respect.

팀장님이세요? [tim-jang-nim-i-se-yo?]
Are you the team leader?

• 팀장님 [tim-jang-nim] means "team leader"
• ___(이)세요? [___(i)se-yo?] means "are you?"

Examples:

• 선생님이세요. [seon-saeng-nim-i-se-yo] "S/he is a teacher."
• 선생님이세요? [seon-saeng-nim-i-se-yo?] "Are you a teacher?" Or "Is s/he a teacher?"
• 가수세요. [ga-su-se-yo] "S/he is a singer."
• 가수세요? [ga-su-se-yo?] "Are you a singer?" Or "Is s/he a singer?"

잘 부탁드립니다. [jal bu-tak-deu-rim-ni-da]
I look forward to working with you.

• 잘 [jal] means "well"
• 부탁드립니다 [bu-tak-deu-rim-ni-da] is a formal way of saying "I request" or "I ask for a favor."
• It implies that you're aware of the other person's effort and are grateful in advance.

• A: 어? 안녕하세요. 이번에 새로 들어온 인턴이세요?
  Oh! Hello! Are you the new intern?
• B: 네, 잘 부탁드립니다. [ne, jal bu-tak-deu-rim-ni-da]
  Yes, I look forward to working with you.
• A: 저도 잘 부탁드립니다.
  I look forward to working with you too.

• A: 이쪽은 이번에 새로 들어온 인턴이세요.
  Here's the new intern who just joined.
• B: 잘 부탁드립니다. [jal bu-tak-deu-rim-ni-da]
  I look forward to working with you.
• A: 이쪽은 대표님이세요.
  Over here is our CEO.
• C: 저야말로 잘 부탁드립니다.
  Likewise, I look forward to working with you.
• C: 앞으로 강팀장이랑 같이 잘 해봐요.
  Work well with Manager Kang from now on.
• B: 팀장님이세요? [tim-jang-nim-i-se-yo?]
  Are you the team leader?
• A: 네! 앞으로 즐겁게 일해 봐요!
  Yes! Let's enjoy working together!