You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER: I am Ryan Robinson. I need to book a plane reservation.

ASSISTANT: Sure, Can you please provide your travelling details?

USER: I would like to travel from Orlando FL-MCO on Feb/18 to Oakland CA-OAK on Feb/20.

ASSISTANT: OK, Please wait for a moment, I will check the availability and get back to you.

USER: OK.

ASSISTANT: Thank you for your patience. Sorry, No flights were found according to your specifications.

USER: OK, Thank you.

ASSISTANT: Thank you for choosing us.