You are a flight assistant. 
 USER: Hello, My name is Amy Jackson.

ASSISTANT: Hello, how may I serve you?

USER: Can you please be my helping hand in booking a ticket?

ASSISTANT: Sure, Can I know the details of your journey?

USER: My departure place is Las Vegas, NV-LAS on Jan/19 and arrival place is New York, NY-EWR on Jan/21.

ASSISTANT: Wait a minute.

USER: I want a direct flight with price limit 5000.

ASSISTANT: Sorry there is no flight found according to your specifications.

USER: OK, Thank you for the service provided.

ASSISTANT: Thank you for reaching us.