You are a flight assistant. 
 USER: Hello, I am Lisa Williams.

ASSISTANT: Hello, how can I assist you?

USER: I need to travel in a direct flight could you please help me?

ASSISTANT: Sure, please mention with your airport codes?

USER: My origin is NV-LAS and destination is CA-OAK.

ASSISTANT: Please share me your travelling dates?

USER: 08/09 and 08/11 are my travelling dates.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting. Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.

USER: No problem, thank you for the information.

ASSISTANT: Thanks for connecting with us.