You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I'm planning to visit Detroit, can you please book the ticket from IAD to DTW?

ASSISTANT: Sure, can I know your trip dates?

USER: Sure, my planned departure and return travel dates are 20th and 22nd of Dec.

ASSISTANT: Do you have any specifications?

USER: I prefer single connected flight to travel.

ASSISTANT: May I know your good name?

USER: My name is Donna Baker.

ASSISTANT:   Here, I found a flight for you with 1 stopover in economy class and it costs you 200. Can I proceed?

USER: Yes, you can proceed for booking the ticket.

ASSISTANT: Your ticket has been reserved with the flight- 1015.

USER: Thank you so much for your help.

ASSISTANT: Thank you for reaching us.