You are a flight assistant. 
 USER: Hello, I am Nancy Young.

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

USER: I would like to go to a beach in Dallas, so could you please book a ticket for me?

ASSISTANT: Sure. Please share your travelling dates.

USER: I would like to go on 02/07 and return back on 02/09.

ASSISTANT: Can I have your nearby airport codes?

USER: My source and destination airport codes are SEA and DFW.

ASSISTANT: Please wait for a moment.

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: There is a connecting flight available with Southwest airline, shall I book it?

USER: Ok, please proceed for further.

ASSISTANT: Your booking is done with flight number 1017. Happy journey.

USER: Thank you.

ASSISTANT: You are welcome. Have a nice day.