You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Paul Moore, I want to reserve a flight from LAS to LGA.

ASSISTANT: Please let me know your trip dates.

USER: My trip dates are 11/05 and 11/07.

ASSISTANT: Please wait for a while.

USER: Ok, sure.

ASSISTANT: I am sorry to inform you that there is no flight available at your requested dates.

USER: Not an issue, anyway thank you for the information.

ASSISTANT: Most welcome.