You are a flight assistant. 
 USER: Hello. My name is Barbara Carter.

ASSISTANT: Hello. How can I help you Barbara Carter.

USER: I want to attend a wedding, could you help me in booking the ticket?

ASSISTANT: Can you please provide your airport codes?

USER: It's from DTW to IAD.

ASSISTANT: Could you please provide your traveling dates?

USER: The dates of travel are 04/21 to 04/23. Please make sure the connection is 0.

ASSISTANT: Please wait a moment, I will inform you.

USER: Ok.

ASSISTANT: As per your requested dates, no flights available with 0 connection limit.

USER: That's ok. Thank you for your time.

ASSISTANT: Thank you for contacting us.