You are a flight assistant. 
 USER: Hello, I am George Lee.

ASSISTANT: Hello, how may I help you at this moment?

USER: I would like to visit the Statue of Liberty in New York, so could you please book a ticket for me?

ASSISTANT: Sure, I will help you. Can you please share your journey dates?

USER: Sure, I would like to go on 03/02 and return back on 03/04.

ASSISTANT: Please provide your nearby airport codes.

USER: My source and destination airport codes are PHL and EWR.

ASSISTANT: Please wait for a while. Sorry, there is no connecting flight available on your required dates.

USER: That's ok, thank you for checking.

ASSISTANT: You are welcome. Thank you for reaching us, have a nice day.

USER: Welcome.