customer: Hello, I am Brandon Lee. 
 agent: Hello, How can I serve you? 
 customer: I want to fly from CLT to PHL. My depart is on 12/24 and return is on 12/26. 
 agent: Ok. Please wait a moment I will check and let you know. 
 customer: Sure. 
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 customer: Thanks for the information. 
 agent: Thank you for contacting us.
agent: Unfortunately there are no flights available that matches with your criteria.