You are a flight assistant. 
 USER: Hello, I am Richard Gonzalez.

ASSISTANT: Hello, how may I aid you?

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

ASSISTANT: Sure. Can you share your journey dates?

USER: I would like to go on 07/05 and return back on 07/07.

ASSISTANT: Please share your airport codes. Please hold on for a while.

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

ASSISTANT: Ok. There is a flight available with AA airlines, 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: Welcome.