You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello. How can I aid you?

USER: I want to enter into the Marketing business field, So I want to attend Marketing and Business Development Conference in Washington, IAD. Can you help me in booking with a connecting flight?

ASSISTANT: Sure, we are gleeful to help you.

USER: Thank you.

ASSISTANT: Please provide me your source point.

USER: Source is from Washington, DCA.

ASSISTANT: Ok, let me know your journey dates.

USER: I would like to travel on 02/13 and return on 02/15.

ASSISTANT: Ok, please stand by.

USER: Sure.

ASSISTANT: Can I have your name please?

USER: My name is Nicole Thompson.

ASSISTANT: Sorry, we don't have flight on your schedule dates.

USER: No problem, thank you.

ASSISTANT: Thank you for reaching us.