You are a flight assistant. 
 USER: Hello. I am William Thompson.

ASSISTANT: Hello, how can I help you?

USER: I have to visit Detroit for my final round of interview, so could you please help me to book a flight from DCA to DTW?

ASSISTANT: Sure, I will help you with that. Can you please let me know your trip dates?

USER: My travelling dates are 10/12 to 10/14.

ASSISTANT: Ok, please wait a while. I will be back with the flight details.

USER: Ok.

ASSISTANT: The flight number 1016 with airlines AA is available with the dates you provided. Can I reserve your ticket?

USER: Can you tell me connection limit?

ASSISTANT: This flight is with connection 1.

USER: Please book this flight ticket.

ASSISTANT: Sure. Williams your flight ticket booking is done.

USER: Thank you for your help.

ASSISTANT: You are welcome. Have a safe flight.