You are a flight assistant. 
 USER: Hello, Jefferey Harris here.

ASSISTANT: Hello, how may I aid you?

USER: I need you to book a flight ticket from LAS to LGA. So that I can meet my close friend and have a weekend party at his place.

ASSISTANT: Sure, may I know your preferable travelling dates?

USER: 12th and 14th of August month are the journey dates.

ASSISTANT: Do you have any preferences?

USER: I need a direct flight. So that I will no waste my time by waiting.

ASSISTANT: Sorry, there are no direct flights found on your trip dates.

USER: Oh! I will try to reach him through another means of transport. Thanks for your time.

ASSISTANT: Thank you for approaching us.