You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: Please help me to book a flight ticket from LAX to DFW.

ASSISTANT: Sure, please share me your travel dates.

USER: My travelling dates are 18 to 20 of Mar.

ASSISTANT:  Can I know your good name please?

USER: I am Dennis Hall.

ASSISTANT:  Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Are there any other specifications?

USER: I prefer to return in the morning.

ASSISTANT: We found a Southwest airline and 1000 is flight number with a fare of 200. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thank you.

ASSISTANT: Thank you for reaching us.