You are a flight assistant. 
 USER: Hello. Jeffrey Lewis here.

ASSISTANT: Hello, how can I oblige you today?

USER: Can you please book me a flight from OAK to SFO?

ASSISTANT: Sure, when are you planning to travel?

USER: Sure, my travel dates are from Nov 01 to Nov 03.

ASSISTANT: Do you need a connecting flight?

USER: No, I need a direct flight.

ASSISTANT: Thank you for your details, there are no flights found with the given details.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you.