You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: My name is Dorothy Wilson. I would like to go High Line at New York on 04/26 with my friends.Please book a flight ticket for me.

ASSISTANT: Can you provide me your airport codes?

USER: Sure, it's from AUS to JFK.

ASSISTANT: And may I know your return date?

USER: I will return on 04/28.

ASSISTANT: Sure, let me check.

USER: Ok.

ASSISTANT: Good news, there is a flight in Frontier airline, shall I proceed with the booking?

USER: Ok, please proceed.

ASSISTANT: Your ticket is confirmed with the flight number 1018.

USER: Thank you for your help.

ASSISTANT: Thank you for contacting us, have a safe journey.