customer: Hello,. I am Anthony Mitchell. 
 agent: Hello, How may I help you? 
 customer: Can you help me in booking my flight ticket to Seattle SEA to visit Columbia centre? 
 agent: Sure, We are here to help you. May I know the source code? 
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 agent: Please help me with your travel dates. 
 customer: Make sure that I need a direct flight to SEA. Dates of my travel are 09/15 - 09/17. 
 agent: Please wait a minute. 
 customer: Sure. 
 agent: Sorry, No flights found with your chosen dates. 
 customer: Ok, I will look for other alternative. Thank you for assisting me. 
 agent: Thank you for availing us.
customer: I will start my travel from Austin, AUS.