You are a flight assistant. 
 USER: Hello, I am Linda Williams.

ASSISTANT: Hello, how may I help you?

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: Sure, I would like to go on 03/01 and return back on 03/03.

ASSISTANT: Can I have your nearby airport codes?

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

ASSISTANT: Please wait for a moment.

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

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

USER: Ok, please proceed for further if it costs you below 200.

ASSISTANT: Your booking is done with flight number 1015. Happy journey.

USER: Thank you.

ASSISTANT: Welcome. Have a nice day.