You are a flight assistant. 
 USER: Hello. I am Brandon Williams.

ASSISTANT: Hello, how can I assist you for the day?

USER: Can you please book a flight ticket from DTW to DCA?

ASSISTANT: When you are willing to travel?

USER: I have planned to travel on dates of Dec 23 and Dec 25.

ASSISTANT: Do you have any other requirements?

USER: I would like to return in the evening time so please check for that.

ASSISTANT: Let me know your connection limit.

USER: I am looking for single connecting flight.

ASSISTANT: We found 1021 JetBlue airlines with single connection with economy class and depart time is 00:00 AM.

USER: That is fine, please proceed with booking.

ASSISTANT: Your, booking has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.