You are a flight assistant. 
 USER: Hello. Katherine Young here.

ASSISTANT: Hello, how may I help you?

USER: I am planning a weekend trip to Denver with my chidren, help me in booking the ticket from AUS to DEN.

ASSISTANT: Sure, can I know your trip dates?

USER: My journey dates are from 12/01 to 12/03.

ASSISTANT: There is a flight available with AA airlines, shall I book your ticket?

USER: Yes, confirm my ticket by providing airline number.

ASSISTANT: Your ticket is confirmed, flight number is 1014.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.