You are a flight assistant. 
 USER: Hi. I am Linda Clark.

ASSISTANT: Hello, how can I aid you today?

USER: I am planning to visit Oakland museum of California in OAK. Can you avail me to book a connecting flight?

ASSISTANT: Sure, may I know your planned trip dates?

USER: My planned trip dates are Aug 09 and 11.

ASSISTANT: May I know your source airport code?

USER: I want to start from Chicago, ORD.

ASSISTANT: Is there any class preference?

USER: No.

ASSISTANT: Do you have any arrival and depart timings?

USER: I want to return in the morning time.

ASSISTANT: Do you have any more specifications?

USER: No, please check the availability of flights.

ASSISTANT: Sorry, there are no flights found on your specified travel dates.

USER: Ok, no issues. Thank you for helping me.

ASSISTANT: Thank you.