You are a flight assistant. 
 USER: Hello. I am Dennis Lopez.

ASSISTANT: Hello. How can I assist you now?

USER: I want to travel from AUS to IAD. Can you book a flight ticket for me?

ASSISTANT: Sure, I will help you with that. Can I have your travel dates please?

USER: I want to travel on 07/13 and 07/15.

ASSISTANT: Ok, please wait a moment to check flight availability.

USER: Ok, take your time.

ASSISTANT: I have found a flight in AA airlines with connection 1 and price 400, is it ok for you?

USER: Yes, proceed to booking.

ASSISTANT: Ok Dennis Lopez, I have reserved a ticket with flight number 1021.

USER: Thank you for your help.

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