You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me in booking a flight ticket from IAH to DTW?

ASSISTANT: Sure, help me with the trip dates?

USER: My trip dates are from Feb 27th to Feb 29th.

ASSISTANT: May I know your name for the booking process?

USER: I am Anna Allen.

ASSISTANT: Do you have any specifications to be met?

USER: I want a single stopover in between my journey.

ASSISTANT: There is a flight in an airline Spirit with 1021 number having a single connection in an economy class. Shall I proceed to book?

USER: Yes, please proceed.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.