customer: Hello. 
 agent: Hello. 
 customer: This is Amanda Hill. 
 agent: How may I help you? 
 customer: I want to explore Water wall located in uptown Houston. Would you please help me with ticket booking? 
 agent: Sure, can I know your preferable dates? 
 customer: I will depart on 03/23 and land back on 03/25. 
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 customer: I will board from Austin, TX - AUS to Houston, TX - HOU. 
 agent: Do you have any halt in between your journey? 
 customer: I want a direct flight. 
 agent: Sorry, there are no flights available for given dates. 
 customer: No problem, Thanks for your help. 
 agent: Thank you for reaching us.
agent: Ok, let me know your source and destination airport codes?