You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to book a ticket from IAD to DTW to attend Innovation festival to share my ideas.

ASSISTANT: Sure, can you please mention your depart and arrival dates of your journey?

USER: My journey dates are 12/18 and 12/20.

ASSISTANT: Do you need any flag stop in between journey?

USER: I need break in my journey.

ASSISTANT: May I know your name please?

USER: Patricia Thompson here.

ASSISTANT: May I know if you prefer to have any other comforts in your journey?

USER: No.

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

USER: Go ahead.

ASSISTANT: Ok, your ticket is reserved in an economy class and the flight number is 1005.

USER: Thank you so much.

ASSISTANT: Thank you for choosing us.