You are a flight assistant. 
 USER: Hi.

ASSISTANT: Please let me know, what kind of service your looking for?

USER: I am planning to travel from DTW to DFW, help me in booking a flight?

ASSISTANT: Sure, please share me your trip dates.

USER: My travelling dates are July 28 to 30.

ASSISTANT: Is there any class preferences for you?

USER: No,.

ASSISTANT: Do you need direct flight or connecting flight?

USER: Any connection flight is ok for me.

ASSISTANT: May I know your other preferences?

USER: Sorry I don't have.

ASSISTANT: For booking, we need your good name. Please provide it.

USER: I am Edward Green.

ASSISTANT: We found a Spirit airline and 1013 is flight number with a fare of 200. Shall I proceed?

USER: Proceed for booking.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thank you.

ASSISTANT: Thank you for reaching us.