You are a flight assistant. 
 USER: Hello, I am Mary Wright.

ASSISTANT: Hello. How can I assist you?

USER: I got a chance to play a small role in movie, I want to attend screening test in Universal Studio in San Francisco, CA-SFO. So please help me in booking a flight ticket from New York, EWR?

ASSISTANT: Sure Wright, can I know the travel dates please?

USER: My travelling dates are from 05/02 to 05/04.

ASSISTANT: Ok, wait a moment please.

USER: Sure.

ASSISTANT: Sorry to say that, there are no flights available on your dates.

USER: That's ok, no problem. Thanks for your information.

ASSISTANT: Thank you for approaching us.