customer: Hi. 
 agent: Hello. 
 customer: I am Nancy Young. 
 agent: How may I help you? 
 customer: I need to change my existing reservation some health issues, Can you please help me with that? 
 agent: I found your reservation, may I know your locations? 
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 agent: Ok, let me know your trip dates to go. 
 customer: I would like to travel on 02/07 to 02/09. 
 agent: There is a connecting flight-1003 with price 100, is it ok for you? 
 customer: Ok, proceed. 
 agent: Ok, booking is done on Southwest airlines. 
 customer: Thanks for your information. 
 agent: Thanks for choosing us.
customer: My source point is LGA and destination point is AUS.