You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I want to book a flight ticket from BOS to IAD, can you please help me?

ASSISTANT: May I know your travel dates?

USER: My travel dates are Feb 15 and 17 respectively.

ASSISTANT: Do you have any connecting preferences?

USER: Yes, I am looking for a connecting flight.

ASSISTANT: May I know your name please?

USER: Myself Cynthia Miller.

ASSISTANT: Is there any other concern?

USER: No, other concerns. Please go ahead.

ASSISTANT: Please give me a while let me check with your specifications.

USER: Sure, take your time.

ASSISTANT: Delta Airlines is providing the connecting flight on this route and the fare of 1005.

USER: Please proceed with this flight.

ASSISTANT: Your booking has been done for the airfare of 300 and the flight number is 1005.

USER: Thank you for your help.

ASSISTANT: Thank you.