You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I am William Evans want to attend a workshop at Houston, can you book a ticket within the fare of 500?

ASSISTANT: Yes, I can help you. Could you share me your dates of travelling?

USER: Yes, my travelling dates will be 01/01 and 01/03.

ASSISTANT: Ok, can I know your nearest airport codes?

USER: Sure, I want to fly from ATL to HOU.

ASSISTANT: Ok, give me a moment.

USER: Ok.

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

USER: Ok, proceed with my booking.

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

USER: Thank you.

ASSISTANT: Thank you for reaching us.