You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Mark Parker. I would like to book a flight ticket from IAD to DTW to meet my friends. Could you please help me with booking a flight ticket?

ASSISTANT: Sure, can I know your travel dates?

USER: My travelling dates are Mar 1 and Mar 3.

ASSISTANT: May I know your preferred travel timings?

USER: I want to return in the morning.

ASSISTANT: Do you have any class preference?

USER: Yes, I need to travel in economy class.

ASSISTANT: Any other requirement you prefer to have?

USER: I need a break in between the journey.

ASSISTANT: Ok, please stand by.

USER: Sure.

ASSISTANT: We found a connecting flight with American Airlines having an economy class seat which returns at 7:00AM with fare 100. Shall I proceed?

USER: Yes, please proceed.

ASSISTANT: Your booking is confirmed with flight number 1009.

USER: Thank you for your assistance.

ASSISTANT: Thank you for choosing us.