You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me in booking a flight ticket to IAD from BOS?

ASSISTANT: Sure, May I know your travelling dates?

USER: My travel dates are from Oct 17 to Oct 19.

ASSISTANT: Ok, please help me with your class preference.

USER: I am comfortable with any class.

ASSISTANT: Ok, May I know your connection limit?

USER: I need a single connecting flight.

ASSISTANT: Ok, do you have any other requirements?

USER: No.

ASSISTANT: Thank you for providing details, we found a direct flight in 1011 Southwest Airlines with a fare of 200. Can I proceed for booking?

USER: You can proceed with booking.

ASSISTANT: May I know your name for booking purpose?

USER: I am Matthew Mitchell.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.