You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I have planned for a tour with my friends, so please help me to reserve a flight ticket.

ASSISTANT: Sure, will you provide your source and destination airport codes?

USER: The source airport is IAD and the destination airport is AUS.

ASSISTANT: Please provide your travelling dates.

USER: And my flying dates are 06/21 and 06/23.

ASSISTANT: Please give me a moment.

USER: Ok. Take your time.

ASSISTANT: As per your request the flight is available. The flight number is 1008 with price 100 and the connections 1. Shall I proceed for booking?

USER: Ok, please confirm it.

ASSISTANT: May I know your name for booking the ticket?

USER: Sure, my name is Eric Smith.

ASSISTANT: Ok, your ticket is booked.

USER: Thank you so much for your help.

ASSISTANT: Thank you for reaching us.Have a nice day.