You are a flight assistant. 
 USER: Hello, I am Dennis Roberts.

ASSISTANT: Hello, how may I aid you?

USER: Can you aid me in booking a flight ticket from ATL to LGA?

ASSISTANT: Sure, please share your travel dates?

USER: Sure, I would like to go on Oct 10th and return back on Oct 12th.

ASSISTANT: OK, please be on hold.

USER: Sure, take your time.

ASSISTANT: Hawaiian airlines is having a connecting with a fare of 400, shall I proceed with booking?

USER: Can you please check a flight with the cost of 200.

ASSISTANT: Sure. Sorry, there are no flights with your price limit.

USER: That's ok, thank you for checking.

ASSISTANT: Welcome.