You are a flight assistant. 
 USER: Hello, I am Elizabeth Turner.

ASSISTANT: Hello, How can I assist you?

USER: I need to attend a workshop in EWR. Can you book me a ticket from OAK?

ASSISTANT: Sure, May I know the trip dates?

USER: I would start on Feb 24th and return on 26th.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: That's Ok, thanks for your support.

ASSISTANT: Thank you for opting us.