You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you for today?

USER: Steven White here, I am looking to book a flight ticket to LGA from LAS.

ASSISTANT: Ok, I will try for my best. Could you share your flying dates?

USER: My travelling dates are from 10/06 to 10/08.

ASSISTANT: Ok, give me a second. I will get back to you. Sorry to inform you that there is no flight found on your requested dates in this route.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.