You are a flight assistant. 
 USER: Hello. I am Brian Carter.

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: Sure, can I know your preferable dates?

USER: I will start on 12/24 and return on 12/26.

ASSISTANT: AA airline is available with 1 connection and fare is 100. Shall I proceed?

USER: Please proceed with the booking.

ASSISTANT: Your ticket is booked and flight number is 1005.

USER: Thank you for your kind service.

ASSISTANT: Thank you for reaching us.