You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Justin Thomas.

ASSISTANT: How can I help you?

USER: Can you please guide me in flight ticket booking from ATL to IAD to attend a marriage event?

ASSISTANT: Sure, may I know your planned journey dates?

USER: Thank you and the even is on September month, so the dates are on 09/11 and back on 09/13.

ASSISTANT: Please give me a minute.

USER: Sure.

ASSISTANT: Justin, I found a flight in Delta airlines with price 100. Can I book the ticket?

USER: Yes, you can book the ticket.

ASSISTANT: Your ticket is confirmed and the flight number is 1025.

USER: Thank you for your help in my ticket booking.

ASSISTANT: Thank you for choosing us, have a safe journey.

USER: Welcome.