customer: Hello, Kimberly Wilson here. 
 agent: Hello Wilson. How can I help you today? 
 customer: I need a flight to Dallas to give a motivational speech in a college. Could you book a flight ticket for me? 
 agent: Sure, please can I know your airport codes? 
 customer: My airport codes are LGA and DFW. 
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 customer: I am departing on 03/11 and returning on 03/13. 
 agent: Wait for a moment please. 
 customer: Sure. 
 agent: Sorry Wilson, there is no flight available for you as per your details. 
 customer: No problem, thank you for helping me. 
 agent: My pleasure, have a great day.
agent: Please mention your trip dates to proceed further.