You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,.

USER: I am Samuel Martin.

ASSISTANT: How can I assist you?

USER: I am planning to visit ATL to meet my brother, can you please find a flight from OAK?

ASSISTANT: Please could you let me know your travelling dates.

USER: My travelling dates are 05/14 and 05/16.

ASSISTANT: Please specify your connections limit.

USER: I need a connecting flight.

ASSISTANT: No connecting flight found.

USER: It's ok, no problem.

ASSISTANT: Thanks.