customer: Hi. 
 agent: Hello, do you need any help from us? 
 customer: My wedding venue has been changed, so I want to amend my existing reservation. Could you help me out? 
 agent: Sure, could I have your name please? 
 customer: Ok, my name is Karen Hernandez. 
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 customer: Sure, my airport codes are ORD and LAX. 
 agent: Ok, may I know your trip dates? 
 customer: My trip dates are 12/25 and 12/27. 
 agent: The UA airline with flight number 1001 is available having fare as 100 and connection as 1, is it ok for you? 
 customer: Ok, please book my ticket. 
 agent: Ok, your reservation is confirmed. 
 customer: Thank you. 
 agent: You are welcome.
agent: I have found your reservation, can you please tell us your airport codes?