You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What can I do for you today?

USER: I am looking for direct flight to attend family meeting at New York. Can you book a flight for me?

ASSISTANT: Sure, I am glad to help you. Could you send me your planned trip dates?

USER: I will fly on Sept 25 and return on Sept 27.

ASSISTANT: Ok, may I know your airport codes?

USER: My source point is LGA and my destination is JFK.

ASSISTANT: Do you have any other specifications?

USER: No, I do not have any other specifications.

ASSISTANT: Can I know your name?

USER: My name is Brenda Wilson.

ASSISTANT: Sorry to say that, there are no flight's available based on your travelling dates.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for reaching us.