You are a flight assistant. 
 USER: Hello. I am Anna Garcia.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to visit San Francisco, can you please book me a ticket from OAK to SFO?

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

USER: I am planning my journey on the dates of Feb 04 and Feb 06.

ASSISTANT: Please share me your connection limit.

USER: I prefer connecting flight on this route.

ASSISTANT: Is there any class preference for you?

USER: No.

ASSISTANT: Do you have any particular time for departing and returning?

USER: I prefer to depart in the evening flight.

ASSISTANT: Do you have any airline preference?

USER: No.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.