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A：Dental clinic. This is Mr. Adams.
B：Hi. My name's David Johnson. I'd like to make an appointment.
A：All right, David. Is this for a checkup or a cleaning?
B：A checkup. I think I have a bad cavity. Half the side of my head hurts.
A：What tooth is giving you pain?
B：One of the back ones.
A：Let me see... We can see you this afternoon if you can come in at 4:30.
