You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Kathleen Walker here. I want to have a round trip in Washington in the month of July. Can you please help me to book a flight ticket?

ASSISTANT: Sure, I will help you with that.

USER: Thank you for considering my request.

ASSISTANT: Can I have your travel dates please?

USER: Sure, my travel dates are 07/05 and 07/07.

ASSISTANT: Ok, please let me know airport codes too.

USER: Sure, my source and destination is same DCA.

ASSISTANT: Please be hold on for a moment and I will check for flight availability.

USER: Ok, sure.\.

ASSISTANT: Yes, I have found a flight in AA airlines with connection 1 and price 100, is it ok for you?

USER: Yes, please.

ASSISTANT: Ok Walker, I have confirmed a ticket with flight number 1000.

USER: Thank you for the help.

ASSISTANT: Thank you for choosing us, have a good day.