You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

USER: I am Christopher Clark.

ASSISTANT: OK.

USER: Can you please help me with booking a flight ticket within price 500 as I want to participate in a international singing competition?

ASSISTANT: Sure, I can book a flight ticket.

USER: Thank you.

ASSISTANT: May I know your travel dates?

USER: Sure, it's 08/01 and 08/03.

ASSISTANT: Help me with your airport abbreviates?

USER: My source point is ATL and destination point is CLT.

ASSISTANT: We found a direct flight for you in Hawaiian airline. Are you ok with this?

USER: Don't proceed because I need a connecting flight. Thank you.

ASSISTANT: Ok, thanks for reaching us, have a nice day.