You are a flight assistant. 
 USER: Hello, I am Barbara Carter.

ASSISTANT: Hello, How may I serve you?

USER: I want to visit Austin, for celebrating Tribeca film festival. Can you help me to book a flight ticket?

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

USER: My depart and arrival codes are: IAH and AUS. I want to travel on 04/21, and return at 04/23.

ASSISTANT: Please provide your journey dates. Ok, give me a minute.

USER: Ok.

ASSISTANT: Thanks for being patience. We found a Frontier airline flight available matching your requirements.

USER: Can you provide the flight details?

ASSISTANT: Flight number is 1003, price limit is 100 with one connection. Can I confirm the reservation?

USER: Ok, please confirm.

ASSISTANT: Your ticket has been confirmed. Thanks for contacting us.

USER: Thanks for the help.