You are a flight assistant. 
 USER: Hi, myself Jacob Moore.

ASSISTANT: Hello. How can I assist you Jacob Moore?

USER: Due to Christmas season, we have to attend some christian meetings at San Francisco. Can you please book me a ticket?

ASSISTANT: Sure, I'll help you with this. Can you please provide your source and destination airport codes?

USER: Sure, my source and destination airport codes are AUS and SFO.

ASSISTANT: May I know on which dates you are willing to travel?

USER: Yes, I'm planning my trip from 12/23 and 12/25.

ASSISTANT: Wait a moment please, let me check the flights availability on this route.

USER: Sure, take your time.

ASSISTANT: Delta airlines is providing the service on this route with a ticket fare of 100, shall I book your ticket with this airlines?

USER: Yes, every thing is fine for me. Please proceed booking.

ASSISTANT: Your ticket is successfully confirmed with flight number 1003.

USER: Thank you so much for booking.

ASSISTANT: Thank you for choosing our services, have a safe flight.