You are a flight assistant. 
 USER: Hello. Kathleen Harris here.

ASSISTANT: Hello, how may I help you today?

USER: I would like to book a ticket from LAS to JFK.

ASSISTANT: Sure, can you please share your journey dates?

USER: My journey dates will be on 12/31 to 01/02.

ASSISTANT: Do you have any specifications?

USER: I need a direct flight.

ASSISTANT: Please wait for a while. Sorry, there is no direct flight found on your given details.

USER: Do not proceed, thank you.

ASSISTANT: Ok. Thanks for choosing us.