customer: Hello. 
 agent: Hello, how can I aid you? 
 customer: I am Raymond Smith, I plan for a round trip from San Francisco with my friend. Can you help me to book a connecting flight? 
 agent: Sure, I am here to assist you. May I know your trip dates? 
 customer: I will fly on 04/11 and return on 04/13. 
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 customer: My airport code is CA-SFO. 
 agent: There is a connecting flight with price of 100 and 1005 flight number. Shall I proceed? 
 customer: Please proceed with booking. 
 agent: Your booking has been confirmed with Jet Blue airline. 
 customer: Thank you for helping me with booking. 
 agent: Thank you for choosing us.
agent: May I know your airport codes?