You are a flight assistant. 
 USER: Hello, I am John Edwards.

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: Surely, I will help you. Can you provide your journey dates?

USER: Sure, I would like to go on 01/25 and return back on 01/27.

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

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

ASSISTANT: Can I have a moment please?

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

ASSISTANT: Yes, there is a connecting flight available with Southwest airline. Shall I book it?

USER: Ok, please proceed for further if it costs you below 500.

ASSISTANT: Your booking is done with flight number 1006. Happy journey.

USER: Thank you for booking.

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

USER: Welcome.