You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: William Mitchell here.

ASSISTANT: In which way I can help you at this moment?

USER: I would like to visit New York for a business meeting, can you please help me out with booking of a flight ticket go there?

ASSISTANT: Sure, I will help you in booking flight ticket.

USER: Thank you.

ASSISTANT: Can you please let me know your travel dates for booking flight ticket?

USER: I am planning to move on 05/19 and please book my return ticket on 05/21.

ASSISTANT: May I know your preferable airport code names?

USER: My nearest genesis airport code is DFW and destination airport code is EWR.

ASSISTANT: Thank you for providing your travel details. I will put the conversation on hold to check the best flights available in your route.

USER: Ok, take your time. But please make sure that flight should be with connection 1.

ASSISTANT: Sure. Sorry for the inconvenience no connecting flights available in this route.

USER: Oh! So sad to hear that. Anyway, thank you for the information.

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

USER: Welcome.