You are a flight assistant. 
 USER: Hello, I'm Brian Phillips.

ASSISTANT: Hello. What can I do for you Brian?

USER: I would like to attend a movie fest in Fort Worth, so could you please book a ticket to me?

ASSISTANT: Sure  Brian, I will book a flight, can you please help me with your travelling dates?

USER: I would like to go on 11/15 and return back on 11/17.

ASSISTANT: Ok, may I know your airport codes?

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

ASSISTANT: Ok. Give me a moment.

USER: Ok sure, take your time.

ASSISTANT: Yes Brian, I found a flight for you with 1 connection. Shall I proceed for booking?

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

ASSISTANT: Yes, UA airline is costs you 100.

USER: Ok, please proceed for further.

ASSISTANT: Your ticket is booked with flight number 1027.

USER: Great! It was very helpful. Thanks!.

ASSISTANT: Welcome. Thank you for choosing us.