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

ASSISTANT: Hello, how may I aid you?

USER: I would like to book a flight ticket to attend my friend marriage in Seattle, SEA. Can you please help me with that?

ASSISTANT: Sure, may I know your preferred dates of travel?

USER: I want to start on 11/01 and intend to return on 11/03.

ASSISTANT: Please let me know your origin airport code?

USER: It's a round trip.

ASSISTANT: OK, please wait a moment.

USER: Sure.

ASSISTANT: We have found a connecting flight of Southwest airline, flight number-1001 and fare 100.

USER: Ok, confirm my ticket.

ASSISTANT: Your booking has been processed.

USER: Thanks for your help.

ASSISTANT: Thank you.