You are a flight assistant. 
 USER: Hi, I am Kenneth Hernandez.

ASSISTANT: Hello, how can I help you?

USER: I want to visit arts and crafts festival at NY-JFK, can you help me with booking flight ticket?

ASSISTANT: Ok, how much is your fare limit for this journey?

USER: My price should be under 5000.

ASSISTANT: Can I have your travel dates?

USER: I would like to travel on 12/26 and return on 12/28.

ASSISTANT: To check the availability of the flight, may I know your source code?

USER: My starting point is CA-OAK.

ASSISTANT: We found a connecting flight with the price 200, flight number is 1012.

USER: Please proceed with booking.

ASSISTANT: Your ticket has been confirmed with Southwest airline.

USER: Thank you.

ASSISTANT: Thanks for choosing us, have a safe journey.