customer: Hello, I am Kimberly White. 
 agent: Hello, how may I support you? 
 customer: Could you assist me in booking a direct flight to Detroit? 
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 customer: I want to fly from Houston, TX - HOU. 
 agent: Ok, please share me the exact airport code of Detroit. 
 customer: I want to head to MI - DTW. 
 agent: On which dates you want me to book your ticket? 
 customer: My travelling dates are from 01/21 to 01/23. 
 agent: Ok Kimberly White, please give me a moment to check the availability. 
 customer: Sure. 
 agent: Sorry, there is no direct flight available. 
 customer: It's ok, not really a problem. Thank you for your information. 
 agent: Thank you for contacting us.
agent: Sure, from which airport are you going to catch your flight?