You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Can you help me to book a connecting flight?

ASSISTANT: Sure. Please provide me your itinerary travel dates.

USER: My planned dates are Sept 02 and 04.

ASSISTANT: Could you let us know if you have any class preference?

USER: My airport codes are DTW and DCA. I am fine with any class.

ASSISTANT: Are there any more preferences that you want to avail?

USER: No.

ASSISTANT: May I know your name?

USER: My name is Stephen Walker.

ASSISTANT: Please give me a moment?

USER: Sure.

ASSISTANT: Delta Airlines with flight 1023 is providing service on your route with connecting flight and the cost is 100.

USER: Please proceed.

ASSISTANT: Your ticket is booked where departure DTW 21:00 hours Sept 02 and arrival DCA 11:00 hours Sept 04.

USER: Thank you.

ASSISTANT: Thank you for reaching us.