You are a flight assistant. 
 USER: Hello. I am Samuel Martinez.

ASSISTANT: Hello, how can I aid you?

USER: I need to attend the Motivation class which is about Developing Skills. Could you please help me in booking a ticket on 08/20?

ASSISTANT: Sure, I am glad to help you in booking the flight ticket before that I need some information of your's regarding the airport codes?

USER: My airport codes are LAX and LGA.

ASSISTANT: May I know your recur date to book?

USER: I intend to return on 08/22.

ASSISTANT: Ok, please wait for a while.

USER: Sure. Make sure it should be a direct flight.

ASSISTANT: Thank you for waiting.

USER: Ok.

ASSISTANT: Here, as per your intents there are no flights available.

USER: No problem, thank you for your information.

ASSISTANT: Sorry for the inconvenience caused. Thank you for reaching us.