You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Please book a flight ticket in my preferable travel dates Dec, 1 and Dec, 3.

ASSISTANT: Sure, may I know the planned travel airport codes?

USER: LAX and IAD are my preferable airport codes.

ASSISTANT: Please provide me the specifications.

USER: I am looking for a connecting flight.

ASSISTANT: May I know the name?

USER: Margaret Hall here.

ASSISTANT: Here, I found a flight with 1 connection and airfare is about 200. Shall I proceed with booking?

USER: Please proceed.

ASSISTANT: In an economy class, your ticket has been confirmed for the flight 1016 in Spirit Airlines.

USER: Thank you.

ASSISTANT: Thank you for reaching us.