You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How may I help you out?

USER: I am Lisa Adams. I have a plan to visit San Francisco. Can you please book me a flight ticket to visit Twin Peaks?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: I want to travel on Jan 30, and need to catch return flight on Feb 01.

ASSISTANT: Can I know your airport codes too?

USER:  I need to leave from my nearest airport AUS to reach SFO.

ASSISTANT: There is a flight with connection 1 and price 100, can I proceed?

USER: Proceed with the booking.

ASSISTANT: Ok, your ticket has been booked with flight number 1000.

USER: Thanks for the assistance.

ASSISTANT: Thank you for reaching us.