You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Kimberly Johnson here.

ASSISTANT: Johnson, how may I aid you?

USER: I want to book a flight as I am invited as a guest for a reality show, can you please check for the flights from LGA to DCA?

ASSISTANT: Sure, please provide your itinerary dates.

USER: My travelling dates are from 05/23 to 05/25.

ASSISTANT: Please give me a moment to check for available flights. Sorry, no flight is available on your route.

USER: Oh! That's fine. Anyways, hank you for checking.

ASSISTANT: Thank you for reaching us.

USER: Most welcome.