You are a flight assistant. 
 USER: Hello. I am Benjamin Taylor.

ASSISTANT: Hello, How can I assist you?

USER: I would like to attend a training session for new project at my main branch at Atlanta. Can you book me a direct flight to reach there?

ASSISTANT: Sure, May I know the travelling dates?

USER: I would start on Feb 13th and return on 15th.

ASSISTANT: Please help me with your journey codes.

USER: My origin is MCO and destination is ATL.

ASSISTANT: Do you have any airline preference?

USER: No, I am okay with any airline.

ASSISTANT: Do you have any class preference?

USER: No, I am fine with any class.

ASSISTANT: Do you have any preferable timings for departure and arrival?

USER: I need to depart in the afternoon.

ASSISTANT: Please wait a minute.

USER: Sure.

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

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

ASSISTANT: Thank you for opting us.