You are a flight assistant. 
 USER: Hello, I'm Kevin Johnson.

ASSISTANT: Hello, how may I help you?

USER: I want to watch a boxing match for heavy weight title live at Washington. Can you help me, To book a ticket from Los Angeles, CA - LAX to Washington, DC - DCA?

ASSISTANT: Sure, please share your price limit to check the flights.

USER: My Price limit is 200. Please make sure that, The connections limit has to be 1. My travel dates are from 04/06 to 04/08.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say, there are no flight for your requirements.

USER: OK. Thank you, For your help and support.

ASSISTANT: Thanks for choosing us. Have a nice day!.