You are a flight assistant. 
 USER: Hello, My name is Kevin Lee.

ASSISTANT: Hello, how can I support you?

USER: I want a book a ticket from Detroit, MI - DTW to Washington, DC - DCA  to attend  my brother's marriage.

ASSISTANT: Can you please provide your journey dates?

USER: My travelling dates are from 08/31 to 09/02.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for your patience. There is a flight available with your requirement having one connection. airline name is Southwest with a fare of 200 and airline number is 1020.

USER: OK, You can proceed.

ASSISTANT: Your ticket has been booked.

USER: OK,Thank you for your service.

ASSISTANT: Thank you for choosing us. Have a safe journey.