You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I want to book a flight ticket to attend my father's retirement function in LAX. Can you please help me in booking a flight ticket from OAK?

ASSISTANT: Sure, let me know your preferable dates.

USER: My travelling dates are from July 26 to July 28.

ASSISTANT: Please share your connection limit.

USER: I would like to prefer a connecting flight.

ASSISTANT: May I know your name?

USER: My name is Kimberly Lopez.

ASSISTANT: Sorry, there are no flights found based on your details.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for choosing us.