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

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

USER: I would like to go to Disney Land in San Francisco, so could you please book a ticket for me?

ASSISTANT: Definitely. Please share your travel dates.

USER: Sure, I would like to go on 10/01 and return back on 10/03.

ASSISTANT: May I know your journey dates?

USER: My source and destination airport codes are DTW and SFO.

ASSISTANT: Please hold on for a while.

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 if it costs you below 200.

ASSISTANT: Your booking is done with flight number 1004. Happy journey.

USER: Thank you.

ASSISTANT: Thank you for reaching us.

USER: Welcome.