You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Dorothy Robinson here. I am planning to visit Pier 39 in SFO, can you help me in booking from JFK?

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

USER: My planning dates are from 08/07 to 08/09.

ASSISTANT: Please wait for a moment. I will check for the available flight and get back to you.

USER: Sure.

ASSISTANT: Dorothy, I am sorry I could not find any flight with your journey details.

USER: That's fine. Anyway, thank you for your help.

ASSISTANT: Ok, thanks for contacting us.

USER: You are welcome.