You are a flight assistant. 
 USER: Hello, Jonathan King here.

ASSISTANT: Hello, how can I help you today?

USER: I want to participate in Rainy Street walk in Austin. Please book me a direct flight.

ASSISTANT: Sure, kindly mention your travel dates.

USER: My depart is on 12/29 and return is on 12/31.

ASSISTANT: Can you please provide me your airport codes?

USER: I would start from GA - ATL as it is my nearest airport and reach TX - AUS.

ASSISTANT: OK, please wait a moment.

USER: Sure.

ASSISTANT: There is a flight with your requirement, airline is JetBlue with price 200.

USER: Ok, please book my ticket.

ASSISTANT: Your booking is done and flight number is 1006,.

USER: Thanks for your prompt service.

ASSISTANT: Thanks for reaching us, have a good day.