customer: Hello. 
 agent: Hello, how may I assist you at this moment? 
 customer: I am Patricia Rodriguez. Can you help me to book a flight ticket from DEN to LGA? 
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 customer: My travelling dates are 05 and 17 of July. 
 agent: Do you need a connection in between your journey? 
 customer: I need a connecting flight. 
 agent: Unfortunately, there are no flights found according to your requirement. 
 customer: It's ok, thank you for giving information. 
 agent: Thank you, for reaching us.
agent: Sure, may I know your planned travelling dates?