You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to book a flight from LAS to JFK, so please help me in booking.

ASSISTANT: Sure, do you have any connection limit?

USER: No, I need a direct flight.

ASSISTANT: May I know your travel dates?

USER: Sure, my journey dates are on Jan 2nd to 4th.

ASSISTANT: Is there any other specifications?

USER: I need a flight in economy class.

ASSISTANT: Please share your name.

USER: Sure, my name is Alexander Moore.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say, no flights found with your requirement.

USER: No issues, thank you.

ASSISTANT: Thanks for reaching us.