You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Can you please help me in booking the flight ticket from LAS to EWR.

ASSISTANT: Sure, I am here to help you out. Please provide me your trip dates.

USER: I planned to travel in between Aug 22 and Aug 24.

ASSISTANT: May I know your name to proceed further?

USER: Mark Jones here.

ASSISTANT: Do you have any requirement to be met?

USER: Connected flight is required.

ASSISTANT: Sorry Mark Jones, there is no flight as per your requirement.

USER: Ok, no issues. Thanks for checking.

ASSISTANT: Thank you.