You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Barbara Adams, can you book a ticket from PHL to DCA?

ASSISTANT: Sure, may I know your travel dates please?

USER: I am planning to start on 12/16 and return on 12/18.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: Make sure that connection limit is 1.

ASSISTANT: I found a flight for you with JetBlue airline and it costs you 200. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed with 1005 flight number.

USER: Thank you for booking.

ASSISTANT: Welcome.