You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. May I know your good name, Please?

USER: My name is Catherine Gonzalez.

ASSISTANT: How can I help you for the day?

USER: I want to make a flight reservation to go for a round trip from DC - IAD. Can you please help me in booking a flight ticket with the single connection?

ASSISTANT: Sure, We can help you. May I know your travel dates, Please?

USER: I will start my journey on 09/06 and return on 09/08.

ASSISTANT: May I know, Do you have any price limit?

USER: Yes, the fare should be 500.

ASSISTANT: OK. We are very happy to inform you that, We found a flight with airline:Spirit having flight number:1000 matching all your requirements. Shall I proceed with the ticket booking?

USER: Ok, confirm my booking.

ASSISTANT: Your ticket is booked. Thank you, For choosing us to book your ticket. Have a great journey.

USER: Thanks for your help.