You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Can you please help me to book a flight from DTW to IAD?

ASSISTANT: May I know travel dates?

USER: I want to travel on Feb 29 and need to return on Mar 2.

ASSISTANT: Do you prefer connecting flight?

USER: I need a flight with single stopover.

ASSISTANT: Do you have any other specifications?

USER: My depart time must be in the afternoon.

ASSISTANT: May I know your good name?

USER: Myself Donald Baker.

ASSISTANT: We found a flight in an economy class with 1 connection in Spirit airlines and the fare of your flight will be 100. Do you like me to proceed your booking with this flight?

USER: Ok, please proceed.

ASSISTANT: Your booking is done with flight number 1010.

USER: Thank you.

ASSISTANT: Thank you for reaching us.