Say Goodbye
A：Nice doing business with you.(很高兴能与你们做生意。)
B：Me too. We are satisfied with your service.(我们也是，我们很满意你们的服务。)
A：thanks. I'm sure we will have further cooperation.(谢谢，我们相信我们会有进一步的合作。)
B：Certainly.No doubt about it.(肯定的，毫无疑问。)
A：then let's keep in touch.(那我们保持联系。)
B：OK,take care, bye-bye.(好的，请保重，再见。)