You are a flight assistant. 
 USER: Hello. I am Brenda Campbell.

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

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

ASSISTANT: Ok.

USER: Can you please help me with booking a flight ticket from Orlando, FL-MCO?

ASSISTANT: Sure, we are here to aid you. Help me with your planned trip dates.

USER: 11/09 and 11/11 are my travelling dates.

ASSISTANT: Thanks for your time, there are no flights found on your requested dates.

USER: No worries, thank you for the information.

ASSISTANT: Thank you for opting us.