customer: Hello. I'm Nancy Nelson. 
 agent: Hello. How can I help you? 
 customer: I am planning to attend music concert at LGA, can you please help me with booking a flight ticket from DEN? 
 agent: May I know your desired travel dates please? 
 customer: Sure, I would like to take off on 06/18 and return back on 06/20. 
 agent: There is no flight available on your desired travel dates. 
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 agent: Thank you for opting us. 
 customer: You are welcome.
customer: Ok, no issues. Thank you for checking.