You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, do you need any help from us?

USER: Can you please help me with finding a flight for my journey to meet my uncle who lives in DCA? My source airport code is LAX.

ASSISTANT: Sure, could you please share your departure and arrival day?

USER: My journey will start on May 17th and I will be returning on May 19th.

ASSISTANT: Ok, may I know your connection limit?

USER: I only need a direct flight, I don't have any other specifications.

ASSISTANT: Ok, could I have your name please?

USER: My name is Carol Johnson.

ASSISTANT: Sorry, there is no flight with your request.

USER: Oh! That's sad to know. Anyways, thank you for checking.

ASSISTANT: You are welcome.