You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Can you please help me in booking a flight ticket from Atlanta, ATL to San Francisco, SFO?

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

USER: My journey dates are from Feb 11 to Feb 13.

ASSISTANT: Do you have any preferences about flight connections?

USER: I need a way station in between my journey.

ASSISTANT: Do you have any preferences about class?

USER: No.

ASSISTANT: Please mention your name.

USER: My name is Debra Hall.

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

USER: Sure, you can proceed for booking.

ASSISTANT: Your ticket is booked. The flight number is 1000.

USER: Thanks for your help.

ASSISTANT: Welcome, have a great day.