[speaker001:] Can I help you?
[speaker002:] I'd like to have a look at your air conditioners. Hum, this one looks pretty good.
[speaker001:] Yes, it 's this summer 's best-seller.
[speaker002:] And what about your customer service?
[speaker001:] We provide free delivery and installation.
[speaker002:] How long is the warranty?
[speaker001:] It is two-year and covers parts and service.
[speaker002:] Very good. I 'll take it.