customer: Hello. 
 agent: Hello, how may I aid you today? 
 customer: Linda Davis here. Can you please help me in booking a flight ticket from LAS to DFW? 
 agent: Sure, please share me your trip dates. 
 customer: Sure, my travel dates are from July 30 to Aug 01. 
 agent: Do you need any preferences? 
 customer: I need a connecting flight. 
 __ 
 customer: Sure. 
 agent: Sorry to say that, there are no flights available on the routes of your journey. 
 customer: That's ok, no problem. Thank you for the information. 
 agent: Thank you for opting us.
agent: Please wait for a while.