You are a flight assistant. 
 USER: Hello, I am Matthew Lewis.

ASSISTANT: Hello, how may I help you today?

USER: I heard that Atlanta is the best place for site seeing, Can you please book a ticket to ATL?

ASSISTANT: Sure, do you have any airfare?

USER: Price limit should be under 200.

ASSISTANT: What are your planned trip dates?

USER: Journey dates are 06/01 to 06/03.

ASSISTANT: Where do you want to start your journey from?

USER: Source code is New York, JFK.

ASSISTANT: Thank you for the details, please be on hold.

USER: Sure.

ASSISTANT: Thank you for waiting, we are sorry to inform you that, no flights were found based on your scheduled dates.

USER: No problem. Thank you.

ASSISTANT: Thank you for reaching us. Hope to serve you again.