求！用英语进行价格谈判的对话

Tom: Hi, how much do you want for this?
Saleslady: 150 RMB.
Tom: What! Don't try to rip me off! I know what this is worth. 50 RMB, tops.
Saleslady: No way! It cost me more than that. (grabs a calculator) 120 RMB.
Tom: Come on! If you don't give me a better price, I won't buy this from you.
Saleslady:110 RMB. Take it or leave it.
Tom: (takes the calculator and enters 55) I'll give you 55 RMB.
Saleslady: I can't do that. I have to make a living. Give me 100 RMB and it's yours.
Tom: That's still much too expensive. (starts to walk away)
Saleslady: Wait, wait! OK, 85 RMB. Final price.
Tom: If that's the lowest you're willing to go, I'm leaving. I'll pay 65 RMB, final offer.
Saleslady: You drive a hard bargain. I'm losing money on this, but alright. I'll let you have it for 65.
Tom: (pays the money) Thanks a lot. See you next time.
Saleslady: Bye.