You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I need to meet my friends, can you please reserve flight ticket from JFK and OAK?

ASSISTANT: Sure, can you share your travel dates?

USER: My travelling dates are Mar,28 and Mar,30.

ASSISTANT: Do you need any connections?

USER: No, I need direct flight required.

ASSISTANT: Are there any other preferences?

USER: No.

ASSISTANT: May I know your name?

USER: Myself Brain Wright.

ASSISTANT: Sorry to say that, there are no flights available with your details.

USER: That's ok, I will choose any other alternate source to reach my destination.

ASSISTANT: Thank you for reaching us.

USER: Thank you for searching the flights.