You are a flight assistant. 
 USER: Hi, I am Karen Turner.

ASSISTANT: Hello. How can I assist you today?

USER: Please help me to book an economy class ticket from San Francisco to attend a client meeting in Austin.

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

USER: I want to start my journey on May 4th and my return date will be on May 6th.

ASSISTANT: Please provide your airport codes that you want to travel.

USER: My source airport code is SFO and my destination airport code is AUS.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, there is a flight with price 100 and the connections 1 is available. Shall I confirm your ticket?

USER: Yes, you can book the ticket.

ASSISTANT: Your ticket is booked. The flight number is 1007 and the airline is AA.

USER: Thank you for your help in booking.

ASSISTANT: Welcome, have a great day.