You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Can you help me to book a flight ticket from CLT to IAD?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: My travel dates are Apr 12 and Apr 14.

ASSISTANT: Do you have any preferences about flight connections?

USER: I prefer connecting flight for this trip.

ASSISTANT: Do you have any preferences about class?

USER: No, thanks for asking.

ASSISTANT: Please mention your name.

USER: I am Raymond Anderson.

ASSISTANT: The Frontier airlines providing an economy class flight with price 100 and the connections 1. Shall I confirm your ticket?

USER: Please proceed to book my flight ticket in this airlines.

ASSISTANT: Your ticket is booked. The flight number is 1022.

USER: Thank you.

ASSISTANT: Welcome, have a great day.