A bunch of white roses?

Look at this picture, it's a bunch of white roses. I thank I can use a dialogue form for introduce a bunch of white roses.
A: Hello, Can you give me a bunch of white roses?
B: Certainly, Here you are.
A: This plants sure have light and water enough before I look seem
flourish, Mybe this white roses flowering season early this year.
B: Yes, you say that's right.
A: Can I ask you couple question about white rose?
B: Why not, Please do.
A: When were white roses flowering?
B: It's flowering in spring.
A: Where does it country of origin?
B: Mexico, Britain, China and india, It's Britain of national flower
as well.
A: What other purpose white roses do? except offer people view of
appreciate and give girlfriend on Valentine's Day.
B: It's smell very fragrance. it can make up perfume. Also wedding,
birthday even funeral can for use it. It can offer an artist view of
painting.
A: Thank you say any more,Oh, I forget to pay money, How
much is it?
B: Don't mention it. It's five hundred and thirty dollars.
A: Here you are, Have a nice day...

看這幅圖,係一束白玫瑰,我想我可以用對話形式介紹這束花出來,,,
A: 妳好,可以給我一束白玫瑰嗎?
B:當然可以,這給妳的,
A;我看多麼茂盛,這植物之前肯定給了足夠的陽光和水份,或許是白玫瑰盛放的季節,
B:係啊,妳說得真對,
A:我可以問妳幾條問題嗎?關於白玫瑰的.
B:點解唔可以,請吧,
A:白玫瑰什麼季節開花的?
B:它是春天開花的.
A:白玫瑰在什麼地方盛產的?
B:墨西哥,英國,中國和印度,它更是英國的國花,
A:除了供人觀賞和情人節送給女朋友外,白玫瑰還有其他用途嗎?
B:它氣味清香,可以造香水,還有婚禮,生日,甚至葬禮都可以用到,
更可以給畫家作寫生用,,,
A:多謝妳說這麼多,啊呀! 我忘記付錢,要多少錢?
B:不要客氣,多謝500百30元
A:給妳的,Have a nice day..
Please anybody correct English part..thank you so much..