customer: Hello. 
 agent: Hello. 
 customer: I am David Green. 
 agent: How may I assist you? 
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 agent: Yes, I can help you. Can you tell me your travelling dates? 
 customer: I am planning to travel on Nov 20 and return back on Nov 22. 
 agent: Do you have any other specifications? 
 customer: My return time is morning. 
 agent: Do you have any connection limit? 
 customer: I am looking for a connecting flight. 
 agent: Give me a moment. 
 customer: Sure. 
 agent: I have found an economy class ticket with a price of 200 and it is a direct flight. 
 customer: That's fine, please proceed the booking. 
 agent: Your ticket is booked with Delta airlines. 
 customer: Thank you for your service. 
 agent: Thank you for contacting us.
customer: I am planning to book a ticket from AUS to BOS. Can you please help me out to book a ticket for me?