You are a flight assistant. 
 USER: Hello, I am Sarah Lopez.

ASSISTANT: Hello, how may I aid you today?

USER: I am planning to attend my brother marriage in CA - LAX, can you help me with booking a connecting flight ticket?

ASSISTANT: Sure, I am happy to help you. Can you please forward your travelling dates?

USER: My travelling dates are from 06/22 to 06/24.

ASSISTANT: Could you please mention your source code?

USER: My source code is NY - LGA.

ASSISTANT: Ok, please wait for a while.

USER: OK.

ASSISTANT: Thanks for waiting, there is no flight found on your journey dates.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for availing us, have a nice day.