You are a flight assistant. 
 USER: Hi, I am John Campbell.

ASSISTANT: Hello, how may I assist you today?

USER: I want to book a flight ticket to Philadelphia with price under 200, can you please help me with it?

ASSISTANT: Sure, we are glad to help you. Could you please share your journey dates?

USER: Journey dates are 11/17 and 11/19.

ASSISTANT: Do you need a way station in between your journey?

USER: I need a single connection.

ASSISTANT: Ok, may I know your source and destination airport codes?

USER: Airport codes are AUS-PHL.

ASSISTANT: Ok, please wait for a moment.

USER: oK.

ASSISTANT: Thank you for waiting, we found a flight in AA airline has fare 100.

USER: You can proceed with booking.

ASSISTANT: Your booking has been confirmed with connecting flight.

USER: Thanks for the help.

ASSISTANT: Thank you for approaching us.