"Nice to meet you, Miss Jyn." It's habit to be polite, even if he and his bunkmate have already spent time complaining about the majority of the first class passengers and their rudeness. Not that Jyn is rude, just that his politeness tends to be more for show, for the sake of his job.

Though it is very nice to meet her.

"The water is much too cold to swim in right now, much less live. You should pick a warmer ocean."