안녕하세요 hello (formal)
ahn-nyong-hah-seh-yoh
안녕 hello (casual)
ahn-nyong
처음 뵙겠습니다 I’m glad to meet you. (formal)
cho-eum-bep-ket-seup-nee-dah
만나 뵈어 반갑습니다 I’m glad to see you. (formal)
mahn-nah-beh-uh-bahn-kap-seup-nee-dah
저의 이름은 XX입니다. My name is XX. (formal)
jo-eh-ee-reum-eun-XX-eep-nee-dah
내 이름은 XX(이)야. My name is XX. (casual)
neh-ee-reum-eun-XX-(ee)yah
저의 취미는 XX입니다. My hobby is XX (formal)
jo-eh-chee-me-neun-XX-eep-nee-dah
내 취미는 XX(이)야. (casual)
neh-chee-me-neun-XX-(ee)yah
나이는 XX살 이에요. I'm XX years old. (formal)
nah-ee-neun-XX-sarl-ee-eh-yo
나이는 XX살이야. I'm XX years old. (casual)
nah-ee-neun-XX-sarl-ee-yah.
Source: http://www.westudykorean.com/