You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am John Campbell. I need to book adlight ticket. I need to book a flight ticket with fare should not exceed 200. Can you please help me that?

ASSISTANT: Sure, may I know your trip dates?

USER: I would like to travel on 06/23 to arrival on 06/25.

ASSISTANT: Please help me with your airport codes?

USER: My source point is AZ-PHX to CA-LAX.

ASSISTANT: Ok, pleaswe wait for a while.

USER: Sure.

ASSISTANT: There is a connecting flight with price of 100 and flight number 1010.

USER: Ok, please confirm it.

ASSISTANT: Your booking has been confirmed with Southwest airline.

USER: Thanks for your information.

ASSISTANT: Thanks for opting us.