customer: Hello, I am Frank Anderson. 
 agent: Hello, how can I assist you? 
 customer: I would like to visit the Statue of Liberty in New York, so could you aid me in booking a flight ticket to New York? 
 agent: Sure, I can help you with that. May I know your source and destination airport codes please? 
 customer: My source and destination airport codes are OAK and JFK respectively. 
 agent: Can you please provide your planned travel dates please? 
 customer: Sure, I would like to go on June 08th and return back on June 10th. 
 agent: May I know your class preference please? 
 customer: Any class is fine for me, but make sure the depart time of flight should be in the morning. 
 agent: Ok, please let me know if you have any other specifications. 
 customer: No, I don't have any other specifications. 
 agent: Ok, please wait for a while. 
 __ 
 agent: Sorry to inform you that there are no flights available for you on those dates with your given details. 
 customer: That's ok, thank you for checking. 
 agent: Thank you for choosing us, have a nice day.
customer: Sure, take your time.