customer: Hello. 
 agent: Hello, how may I help you? 
 customer: This is Angela Campbell. I want to visit New York, to enjoy fun-filled vacations. Could you help me in booking a flight ticket ? 
 agent: Sure, may I know your travelling dates? 
 customer: Sure, my travel dates are from 09/10 to 09/12. 
 agent: Ok, let me know your source and destination airport codes? 
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 agent: Ok, please wait a moment. 
 customer: Yes. 
 agent: Sorry, there are no flights available for given dates. 
 customer: No problem. Thank for your information. 
 agent: Thank you for reaching us.
customer: My source airport code is MN - MSP and my destination airport code is NY - JFK.