You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: Please help me to book a flight ticket from ATL to HOU.

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

USER: My travelling dates are from Nov, 28 to Nov, 30.

ASSISTANT: Do you have any specifications about flight connections?

USER: I need a single connecting flight.

ASSISTANT: Do you have any preferences about class?

USER: No, I do not have any preferences.

ASSISTANT: Please mention your name.

USER: I am Helen Parker.

ASSISTANT: The Southwest airlines providing an economy class flight with price 100 and the connections 0. Shall I confirm your ticket?

USER: Please proceed.

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

USER: Thank you for booking.

ASSISTANT: Welcome, have a great day.