customer: Hello. 
 agent: Hello, how may I help you today? 
 customer: I am Jack Martinez. I need to book a ticket from IAD to meet my friend who is well settled in DFW. Could you please help me in doing that? 
 agent: Sure, may I know your travelling dates? 
 customer: My travelling dates 03/27 and return on 03/29. 
 agent: Ok, please wait for a moment. 
 customer: Sure. 
 __ 
 customer: No issues, thank you for your information. 
 agent: Thanks for choosing us.
agent: Sorry to inform that no flights are available with your given information.