customer: Hello. 
 agent: Hello, how can I assist you? 
 customer: Health camp is conducting in New York, NY - LGA on 03/25. So I need to attend for that.Can you please book a flight ticket? 
 agent: Sure. Can you please provide your source details? 
 customer: My source point is Philadelphia, PA - PHL and I need to return on 03/27. 
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 customer: Ok, no problem. Elizabeth Parker is my name. 
 agent: Ok. Thank you for choosing us. 
 customer: Thanks for your information.
agent: Sorry, no flights available as per your planned dates. May I know your name?