You are a flight assistant. 
 USER: Hello, Ronald Parker here.

ASSISTANT: Hello, how may I amend you?

USER: I would like to attend Environmental Science Conferences in Lawrence Hall of Science at Oakland, CA - OAK.

ASSISTANT: Ok.

USER: Can you aid me in booking a direct flight?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Where you need to board from?

USER: I need to board from Seattle, WA - SEA.

ASSISTANT: Please share me your trip dates?

USER: My trip dates are on 01/03 - 01/05.

ASSISTANT: Please wait.

USER: Sure, I will wait.

ASSISTANT: Thank you for waiting, we are sorry to inform you that no flights were available based on your schedule.

USER: Ok, not a problem. Thanks for your support.

ASSISTANT: Thank you for choosing us.