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 LAS to CLT. Can you help me for that?

ASSISTANT: Sure, I will help you. Please help me with your name.

USER: My name is William Evans.

ASSISTANT: Please help me with your planned travelling dates.

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

ASSISTANT: Do you need a break in your journey?

USER: I need a single connecting flight.

ASSISTANT: Do you have any other preferences in your journey?

USER: No.

ASSISTANT: Please allow me a minute. We have a connecting flight operated by Frontier Airlines with a fare of 100. Is it ok for you?

USER: Ok, proceed for booking.

ASSISTANT: I have booked your ticket in flight-1003.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us. Have a great time.

USER: Welcome.