customer: Hello. 
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 customer: Can you help me to book a flight ticket from AUS to DFW? 
 agent: Sure, may I know on which dates you are willing to travel? 
 customer: My travelling dates are 25 to 27 of May. 
 agent: For further proceeding, may I know your good name? 
 customer: I am William Clark. 
 agent: If you have any specifications please let me know, I'll check availability of flights according to that? 
 customer: I need a connecting flight. 
 agent: Sorry to inform you that, there is no flight found as per your travelling dates. 
 customer: It's ok, not a problem, thank you. 
 agent: Thank you for reaching us.
agent: Hello, how may I assist you today?