Bob speaking.

我就是鲍勃。

Please inform him that Chen Gang was calling.

麻烦你通知他陈刚来过电话。

What a pity! We have another party that day.

太可惜了，我们那天也有个聚会。

Have you been here to see Dr. Tyler before?

你曾来过泰勒医务所看过医生吗？

By the way, will we be able to get a refund on this cancellation?

顺便问一下，我们取消后可拿回定金吗？

How much notice of cancellation is necessary to get my deposit back?

想把定金拿回来，要提前多长时间通知你才行？