customer: Hello, I am Karen Martin. 
 agent: Hello, how can I help you today? 
 customer: I am planning to attend sports event in MI - DTW, can you help me with connecting flight ticket? 
 agent: Sure, we are here to help you. Kindly mention your travel dates? 
 customer: My travelling dates are from 06/29 to 07/01. 
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 customer: My take off is from TX - HOU. 
 agent: Ok, please wait a moment. 
 customer: OK. 
 agent: There is a flight with your requirement, airline is Frontier with price 100 and single connection. 
 customer: You can proceed with booking. 
 agent: Your booking is done. 
 customer: Thank you for the help.
agent: Can you please provide me your take off airport code?