你好呀
Hello, this is the first time.

Cantonese Sentence Breakdown

nei5
you (informal, as opposed to courteous 您nín [您])
can be used to refer to an unspecified person
hou3
to like
to love
to be fond of
to be liable to
to be likely to
haa1
(particle equivalent to 啊 after a vowel, expressing surprise or doubt)