You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: I am David Parker. I want to book a ticket from AUS to SFO to attend seminar, can you help me in booking?

ASSISTANT: Sure, can I know your preferable dates?

USER: I am departing on 11/10 and return on 11/12.

ASSISTANT: I found a flight 1022 of Spirit airlines matches with your preferences, can I proceed?

USER: Please proceed for booking.

ASSISTANT: Your ticket is booked.

USER: Thank you for your information.

ASSISTANT: Thank you.