You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Christine Rodriguez.

ASSISTANT: How may I assist you?

USER: I am looking to book a flight ticket from ATL to IAD to meet my friend. Can you help me to book a flight ticket?

ASSISTANT: Sure, I will help you. Can I have your journey dates please?

USER: My travelling dates are from Oct 20 to Oct 22.

ASSISTANT: Please wait a moment, I will find the availability of flights.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for your waiting, I found an economy class ticket in Frontier airlines with fare 100 and 1 connection. Can I book your ticket?

USER: Ok, please proceed for booking.

ASSISTANT: Ok, your booking is confirmed with flight number 1011.

USER: Thank you for booking.

ASSISTANT: Thank you for approaching us.

USER: Welcome.