Informal Dialogue 各路英语高手请进

A:I'm going to try and get there early to catch a seat near the front.do you want to come with me?我想尽早去霸个前一点的位子,你要和我一起来吗?
B:It depends.What time are you going?说不准.你什么时候去?
A:Let me see.How about a quarter to (8)?嗯...7点45分怎么样?
B:I am unavailable because I have things to do in the lab until 7:30 then I will go to the subway with Steve so we can get some food before the concert.不行,我7点半前要待在实验室里干活,然后要赶在音乐会之前和Steve坐地铁去买食物.
A:No worries.I'll see if I can get you a seat anyway.Is Steve interested?别担心,我看看能不能帮你留个位子.Steve喜欢这个吗?
B:I don't think so.That's not his interest.不,他对这个没兴趣.
Depends:(It) depends.:According to the situation,it's hard to say yes or no.
quarter 'til:a quarter to/until
lock up with:be busy with some assignments that can not be avoided
lab stuff:lab things,lab jobs
hit up:go to
snag:obtain,get
Is in?:Is home?((But here "in" short for "interested",it means "Is Steve interested?"))
not his scene:not his interest.