You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Christopher Williams.

ASSISTANT: How can I assist you today?

USER: I need to book a flight ticket from ATL it's a round trip, can you please help me for booking?

ASSISTANT: Sure, I will help you with that. For searching the flight, I need your travelling dates. Will you mention your travelling dates please?

USER: I would like to travel on 10/27 to 10/29.

ASSISTANT: Please give me a moment. I will revert back to you.

USER: Sure.

ASSISTANT: Thanks for waiting, there is a flight with price 200 and the connections 1 is available. Shall I confirm your ticket?

USER: Ok, proceed for booking.

ASSISTANT: Your ticket is booked. The flight number is 1011 and the airline is Frontier.

USER: Thanks for your information.

ASSISTANT: Welcome, have a great day.