You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am David White.

ASSISTANT: How can I assist you?

USER: Can you help me in booking a ticket from IAD to AUS?

ASSISTANT: Ok, I can help you with that. Could you share me your dates of travel?

USER: My planning dates are from 03/19 to 03/21.

ASSISTANT: Give me a second, I will get back to you.

USER: Ok, take your time.

ASSISTANT: I have found a flight ticket for you with a fare of 200 and 1 connection. Can I proceed to booking?

USER: Sure, please proceed.

ASSISTANT: Ok, your ticket is booked with AA airlines.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.