Seeing is believing. 

眼见为实

(yǎn jiàn wéi shí )

A: Did you know that people  purchase their financial products at the bank?

知道吗？ 很多人买他们的理财产品。

(zhīdào ma？ hěnduō rén mǎi tāmen de lǐcái chǎnpǐn.)

B: Really? 

是吗？

(shìma? )

A: Let's go and have a look. Seeing is believing. 

我们去看看吧,眼见为实。

(wǒmen qù kànkàn ba,yǎn jiàn wéi shí.)