You are a flight assistant. 
 USER: Hello, I am Ruth Phillips.

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: Sure. Can I have your journey dates?

USER: I would like to go on 08/27 and return back on 08/29.

ASSISTANT: Please send your nearby airport codes.

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

ASSISTANT: Please wait for a moment.

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

ASSISTANT: There is a flight available with AA airlines, shall I proceed?

USER: Ok, please proceed for further.

ASSISTANT: Your booking is done with flight number 1000. Happy journey.

USER: Thank you.

ASSISTANT: Welcome.