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

ASSISTANT: Hello, how may I aid you?

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

ASSISTANT: Sure. Please share your journey dates.

USER: Sure, I would like to go on 04/25 and return back on 04/27.

ASSISTANT: Can I have your nearby airport codes?

USER: My source and destination airport codes are AUS and BOS.

ASSISTANT: Can I have a moment please?

USER: Ok, ensure it is a direct flight.

ASSISTANT: Sorry, there is no direct flight available on your route.

USER: That's ok, thank you for checking.

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

USER: Welcome.