You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Karen Carter here.

ASSISTANT: How may I assist you?

USER: Can you book a connecting flight ticket to Washington?

ASSISTANT: Sure Carter, please provide me your journey dates.

USER: Ok. My travelling dates for journey are 12/25 to 12/27.

ASSISTANT: May I know your airport codes please?

USER: My airport codes for boarding the flight are DTW to DCA.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: I found a flight in Hawaiian airlines with price 200. Shall I book the ticket for you?

USER: You can book it. I happy with the fare.

ASSISTANT: Your ticket is confirmed and the flight number is 1005.

USER: Thank you.

ASSISTANT: Thank you for contacting us, have a safe journey.