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

ASSISTANT: Hello, how may I assist you?

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

ASSISTANT: Nice. Can I have your travelling dates?

USER: I would like to go on 06/24 and return back on 06/26.

ASSISTANT: Please share your nearby airport codes.

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

ASSISTANT: Please wait for a moment.

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

ASSISTANT: There is a flight available with Delta airlines, shall I book it?

USER: Ok, please proceed for further.

ASSISTANT: Your booking is done with flight number 1001. Happy journey.

USER: Thank you.

ASSISTANT: You are welcome. Thank you for reaching us.

USER: Welcome.