customer: Hello, I am Jonathan Lewis. 
 agent: Hello, how may I help you at this moment? 
 customer: I would like to visit the Statue of Liberty in New York, so could you please book a ticket for me? 
 agent: Sure, I will help you. Please provide your travelling dates. 
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 agent: Can I have your airport codes? 
 customer: My source and destination airport codes are SEA and EWR. 
 agent: Please wait for a while. 
 customer: Ok, ensure it is a direct flight. 
 agent: Sorry, there is no direct flight available on your dates. You are welcome. Thank you for reaching us, have a nice day. 
 customer: That's ok, thank you for checking.
customer: Sure, I would like to go on 11/15 and return back on 11/17.