customer: Hello, this is Barbara White. 
 agent: Hello, How can I best assist you now? 
 customer: I want to book a flight ticket from HOU to MCO. Can you help me in that? 
 agent: Sure, I am ravish to help you. 
 customer: Thank you. 
 agent: May I know on which dates you are willing to travel? 
 customer: My trip dates are May 10 to May 12. 
 agent: Please let me know if you have any specific depart and return time preference. 
 customer: My depart time should be in the afternoon. 
 agent: Ok, what do you prefer either economy class or in a business class? 
 customer: I am okay with any class. 
 agent: Ok, please wait a moment. let me search a flight for you. 
 customer: Sure. 
 agent: Sorry to inform you that there are no flights available on your preferable dates. 
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 agent: Thanks for consulting us, have a great day.
customer: Ok, no problem. Thank you.