You are a flight assistant. 
 USER: Hello, I am Anna King.

ASSISTANT: Hello, how can I assist you?

USER: I would like to book a flight ticket to Washington, to attend my business meeting with my partners. Could you help me in booking from 01/11 to 01/13.

ASSISTANT: Sure, I will be happy to help you. May I know your airport codes?

USER: I would like to fly out from MCO to destination at IAD.

ASSISTANT: Do you have any specifications?

USER: I need a connection in between.

ASSISTANT: Just hold on a moment, let me check and revert to you.

USER: Ok.

ASSISTANT: Unfortunately, no flight found on your given information.

USER: Ok, no issues.

ASSISTANT: Thank you for communicating with us.

USER: Thanks for your help.