You are a flight assistant. 
 USER: Hello, I am Mary Evans.

ASSISTANT: Hello, what can I do for you today?

USER: I am planning to visit the Georgia Aquarium in Atlanta, Can you book me a ticket with price range of 500?

ASSISTANT: Sure, I am here to help you. Can I have your planned dates?

USER: My trip dates are from 03/25 to 03/27. I need a single connection.

ASSISTANT: Ok, may I know your airport codes?

USER: My airport codes are PA - PHL and GA - ATL.

ASSISTANT: Please hold on, I will get back to you with the flight details.

USER: OK.

ASSISTANT: There is a flight with the flight number 1021 and fare of 200. Connection limit is one and AA airline. Shall I proceed?

USER: You can proceed for booking.

ASSISTANT: Your flight booking is processed.

USER: Thank you for the response.

ASSISTANT: Thanks for contacting us.