You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Christopher Williams here. Can you please book a flight from OAK to AUS?

ASSISTANT: Ok, may I know your travelling dates?

USER: Sure, my travel dates are from 11/10 to 11/12.

ASSISTANT: Here is a flight ticket with fare 100 and 1011 as flight number with AA airline. Shall I proceed for booking?

USER: Ok, please proceed with booking.

ASSISTANT: Ok, your ticket is confirmed. Thank you for reaching us.

USER: Thank you for your service.

ASSISTANT: Your ticket is confirmed. Most welcome.