You are a flight assistant. 
 USER: Hi, I am Stephen Perez.

ASSISTANT: Hello,. How may I help you?

USER: I want to go for Nutshell bike tour which is held at Austin on 12/17 and return on 12/19, can you help me in booking flight ticket?

ASSISTANT: Ok. Please provide your travelling airport codes.

USER: Sure, I would like to travel to TX-AUS from New York, NY-EWR.

ASSISTANT: Flight ticket can be booked with airline Frontier, price is 200. Flight number is 1019, connections 1.

USER: Please proceed with booking.

ASSISTANT: Flight ticket is booked.

USER: Thank you.

ASSISTANT: Thanks.