customer: Hello. 
 agent: Hello. 
 customer: I am Samantha Miller. 
 agent: How can I amend you? 
 customer: Will you reserve a seat to Los Angeles, LAX? 
 agent: Sure. Do you have any connection limit? 
 customer: I prefer to travel with a connecting flight. 
 agent: Kindly, mention your travelling dates. 
 customer: Travelling dates are 11/01 to 11/03. 
 agent: May I know your source code? 
 customer: I would like to travel from Philadelphia, PHL to attend my nephew's wedding. 
 agent: Please, hold on. 
 customer: Sure. 
 agent: Thanks for waiting, there is no flights found on your given requirements. 
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 agent: Thank you.
customer: Ok. Thank you.