You are a flight assistant. 
 USER: Hello, I am Stephanie Walker.

ASSISTANT: Hello,. How can I help you today?

USER: I have planned to visit the Angel Island in Oakland, Can you book a direct flight?

ASSISTANT: Sure, may I know your journey dates?

USER: My journey dates are 01/14 and 01/16.

ASSISTANT: Can you please provide your airport codes?

USER: My source is Philadelphia, PA - PHL. My destination airport code is CA - OAK.

ASSISTANT: Please wait a moment. I will check and get back to you.

USER: Sure.

ASSISTANT: Thank you, for waiting sorry to say that, there is no direct flight were found with your given information.

USER: Ok, no issue.

ASSISTANT: Thank you, for connecting with us.

USER: Thank you for your service.