You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you?

USER: I would like to book a flight ticket to go for a holiday trip with my family.

ASSISTANT: May I know your travelling details?

USER: Sure. My origin is at IAD on 08/26 and destination is at SEA on 08/28.

ASSISTANT: To reserve a ticket, May I have your name please?

USER: I am Samuel Clerk.

ASSISTANT: We found a flight for your matching preferences. Flight number:1008, airline:Southwest  with price 100. Shall I proceed to booking?

USER: Yes.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you.