You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am looking to make a flight ticket which is having a connection limit 0.  Can you help me in making a flight ticket?

ASSISTANT: Sure, can I know the airport codes please?

USER: Yes, the airport codes I prefer are IAD and LAX.

ASSISTANT: Could you provide the travel dates please?

USER: The journey dates are 04/25 and 04/27.

ASSISTANT: Ok, wait a moment please.

USER: Ok.

ASSISTANT: May I know your name please to proceed further?

USER: I am Mary Rodriguez.

ASSISTANT: Sorry Marry, there are no flights available as per your request.

USER: It's ok, thank you for searching.

ASSISTANT: You are welcome. Thank you for choosing us.