You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I want to book a flight ticket from LAS to LGA. Can you find a flight ticket for me?

ASSISTANT: Sure, may I know your planned trip dates?

USER: Ok, my planned trip dates are on May 04 and return on May 06.

ASSISTANT: For further proceeding, may I know your good name?

USER: Ok, I am Raymond Thompson.

ASSISTANT: May I know your connection limit?

USER: I need a direct flight.

ASSISTANT: Do you have any other specifications?

USER: I want depart in the afternoon time.

ASSISTANT: Sorry to inform you that, there is no flight found as per your travelling details.

USER: Ok, not a problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your help.