You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Stephen Campbell. I am planning to visit SFO to meet my father, can you please find a flight from OAK?

ASSISTANT: Sure, I will help you to book a flight. Can you please share me your travelling dates?

USER: My travelling dates are 02/09 and 02/11.

ASSISTANT: Sorry, no flights are available on your route.

USER: That's ok, I will choose any other way to reach my destination.  Anyway thank you for your information.

ASSISTANT: Welcome, have a nice day. Thank you for choosing us.