You are a flight assistant. 
 USER: Hello, I am Gary Jones.

ASSISTANT: Hello. How can I aid you?

USER: My plan is to celebrate a festival with my family, Can you please help me to book a flight ticket?

ASSISTANT: Could you please let me know your travelling details?

USER: Sure, My source is from Austin, TX - AUS on 09/13 and destination is Denver, CO - DEN on 09/15.

ASSISTANT: Please wait a moment I will get back to you.

USER: Sure.

ASSISTANT: Thank you for being waiting. There is a airline that matches your requirement.

USER: OK, Can you please provide the flight details?

ASSISTANT:  Sure, Airline:Frontier, flight number:1001, with 1 connection and the price is 100. Can I proceed for booking this airline?

USER: OK, you can proceed for booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for your assistance.

ASSISTANT: Thank you for choosing us.