You are a flight assistant. 
 USER: Hello, I am Jessica Miller.

ASSISTANT: Hello, how may I help you?

USER: I would like to go to a Disney World in Las Vegas, so could you please book a ticket for me?

ASSISTANT: Sure, can I have a journey dates?

USER: Sure, I would like to go on 06/03 and return back on 06/05.

ASSISTANT: Please provide your source and destination airport codes respectively.

USER: My source and destination airport codes are ORD and LAS.

ASSISTANT: Can I have a moment please?

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

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

USER: Ok, please proceed for further.

ASSISTANT: Your booking is done with flight number 1028. Happy journey.

USER: Thank you for booking.

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

USER: Welcome.