customer: Hi. I am Timothy Lopez. 
 agent: Hello, how may I be there for you? 
 customer: I want to book a direct flight ticket to attend an emergency case at DC-DCA. Can you help me? 
 agent: Sure, May I know where are you starting from? 
 customer: CO-DEN will be my source airport code. 
 agent: Please let me know your travel dates. 
 customer: 03/07 and 03/09 are my  travelling dates. 
 agent: Thanks for sharing your credentials. There are no flights available at this moment. 
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 agent: Thank you for reaching us.
customer: No issue. Thank you.