You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I'm Jack Williams. I just need your help in booking a plane ticket to EWR on 10/28.

ASSISTANT: Can I know your return date and destination airport code please?

USER: Sure. My source code is LAX and my return date is 10/30.

ASSISTANT: Wait a while.

USER: Ok.

ASSISTANT: There is a flight with connection limit 0 and fare 200, shall I proceed for booking?

USER: Fine, but I need only a plane with 1 connection.

ASSISTANT: There is no flight with connection limit 1.

USER: It's ok. Thank you for checking.

ASSISTANT: Thanks for opting us.