You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I would like to travel from DFW to LAS, can you please help me in flight booking?

ASSISTANT: Sure, I can do that for you. Please provide me your travel dates.

USER: I want to fly on Nov 29, return on Dec 01.

ASSISTANT: Ok, do you have any airlines preference?

USER: I want normal cost airline.

ASSISTANT: May I know your name?

USER: My name is Margaret Lopez.

ASSISTANT: Ok, please wait for a while.

USER: Sure, I want a flight with one connection.

ASSISTANT: Sure, single connection flight is available in Delta airlines and the ticket fare is 100 only. Can I book the ticket for you?

USER: Ok, proceed to booking.

ASSISTANT: Your ticket is confirmed successfully with the flight-1020.

USER: Thank you.

ASSISTANT: You are welcome and have a safe flight.