You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am looking to book a flight ticket from DFW to MSP. Can you help me for that?

ASSISTANT: Sure, may I know your planned dates?

USER: My travelling dates are Dec 18 and Dec 20.

ASSISTANT: Thank you, may I know your class preferences?

USER: I prefer to book a economy class.

ASSISTANT: Sure, can I know your name for the documentation purpose?

USER: My name is Cynthia Gonzalez.

ASSISTANT: Do you have any another preferences on this journey?

USER: My return time is morning.

ASSISTANT: Southwest  Airlines providing a flight with the price 200 with 0 connection and return time is 11.00 AM. Can I proceed for the booking.

USER: Ok, proceed for booking.

ASSISTANT: Your flight ticket reservation done with the flight number 1004.

USER: Thank you for booking.

ASSISTANT: Welcome, thank you for reaching us.