customer: Hi. 
 agent: Hello, what service are you looking for? 
 customer: I am Melissa Brown. Can you please reserve me a flight ticket which is having it's depart time in the morning? 
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 customer: Thank you. 
 agent: May I know your origin and destination airports please? 
 customer: My airport codes are ORD - HOU. 
 agent: On which dates are willing to travel? 
 customer: My trip dates are 04/16 - 04/18. 
 agent: Do you have any class preference? 
 customer: No. 
 agent: Please let me know if you have any other preference. 
 customer: I need a single connection. 
 agent: Ok, no flight found on your requested dates. 
 customer: No issues, thank you. 
 agent: Thank you for checking it with us, hope to serve you better next time.
agent: Sure, I am here to help you.