You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: Please assist me in booking a flight ticket from SEA to LAX.

ASSISTANT: Sure, I am here to help you. May I know your planned trip dates?

USER: My trip is in Dec from 21st to 23rd.

ASSISTANT: Do you have any connection limit preference?

USER: I prefer to travel on a connecting flight.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Do you have any airline preference?

USER: No, I don't have any other preferences.

ASSISTANT: Could you help me with your name please?

USER: Emily Carter here.

ASSISTANT: Here I found a connecting flight with American Airlines and the airfare is about 100. Shall I proceed in booking with flight 1005?

USER: Yes, proceed.

ASSISTANT: In an economy class your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching our agency.