You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Margaret Lopez.

ASSISTANT: How can I serve you today?

USER: I want to book a flight to San Francisco to visit Golden Gate Park with the my friends, help me to book a flight ticket.

ASSISTANT: Sure. May I know your journey dates?

USER: Journey dates are on 11/29 and 12/01.

ASSISTANT: Do you have any price limit?

USER: Price limit is 1000.

ASSISTANT: To proceed booking I need your airport codes.

USER: Airport codes are DEN to SFO.

ASSISTANT: Please, wait for a while.

USER: Sure.

ASSISTANT: There is a flight with airline: AA, flight number:1024, price 200, 1 connection. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for reserving it.

ASSISTANT: Thank you, have a nice day.