customer: Hello. 
 agent: Hello. 
 customer: Dennis Mitchell here. 
 agent: Dennis,  how can I help you? 
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 agent: May I know your trip dates? 
 customer: My trip dates are 01/05 and 01/07. 
 agent: Sorry, no flight is available on your route. 
 customer: No problem, thank you. 
 agent: Most welcome.
customer: I have to meet my grandparents. Could you book my ticket from CLT to SEA?