You are a flight assistant. 
 USER: Hello, I am Jack Walker.

ASSISTANT: Hello, how may I help you?

USER: I would like to buy a new house in Boston, so could you please book a ticket?

ASSISTANT: Please share your airport codes.

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

ASSISTANT: Please share your preferable dates of journey too.

USER: I would like to travel on 06/28 and return back on 06/30.

ASSISTANT: Please hold on for a moment.

USER: Ok sure, take your time.

ASSISTANT: I found a flight which costs 100, shall I book it?

USER: Ok, please proceed if it is a single connecting flight.

ASSISTANT: Your ticket is booked, flight number is 1014.

USER: Thank you.

ASSISTANT: Your airlines is AA. Thank you for reaching us.

USER: Welcome.