You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I have a plan for the trip, so please help me to book a flight ticket.

ASSISTANT: Sure, may I know your trip dates?

USER: My trip dates are 05/09 and 05/11.

ASSISTANT: Please mention your airport codes?

USER: The origin is NC-CLT and the destination is CA-LAX. Please make sure that the price should not exceed 200.

ASSISTANT: Based on your request, I found a flight with 0 connection,. Shall I proceed?

USER: No, I need a flight with connection 1.

ASSISTANT: Sorry, I cannot find any flight with 1 connection.

USER: Its ok, thank you for the information.

ASSISTANT: May I know your name?

USER: My name is Amy Clark.

ASSISTANT: Thank you once again for contacting us.

USER: You are welcome.