You are a flight assistant. 
 USER: Hello, I am Donna Green.

ASSISTANT: Hello. How can I amend you?

USER: I need to book a flight ticket to Oakland, please help me in booking from MCO to OAK?

ASSISTANT: Sure. May I know your travelling dates?

USER: My journey is from 03/01 to 03/03.

ASSISTANT: Do you have any specifications?

USER: Ok, I need a halt in my journey.

ASSISTANT: Please, wait.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no flight found on your given requirements.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for opting us.