customer: Hello. 
 agent: Hello, how may I aid you? 
 customer: I am looking for a flight from DCA to LAX, can you book the flight for me? 
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 customer: My travelling dates are from 01/30 till 02/02. 
 agent: May I know your name? 
 customer: Myself Jack Perez. 
 agent: Thank you for providing your details. No flight found for this search. Sorry for inconvenience. 
 customer: That's ok. Thank you for your information. 
 agent: Welcome.
agent: Sure, on which dates you want to travel?