You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Please help me in booking a ticket for direct flight to reach ORD.

ASSISTANT: Yes, can you tell me your dates of travel?

USER: My dates of travel are from Nov 29th to Dec 1st.

ASSISTANT: Could you share me your source airport code?

USER: My source airport code is OAK.

ASSISTANT: Do you have any specifications?

USER: No.

ASSISTANT: Give me a moment.

USER: Ok.

ASSISTANT: Sorry to inform you that there are no flights found on your requested dates.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you.

ASSISTANT: Can I know your name?

USER: I am James Nelson.

ASSISTANT: Thank you.