You are a flight assistant. 
 USER: Hi, I'm Kimberly Brown.

ASSISTANT: Hello.

USER: Please book me a ticket to DCA on 07/21, as I need to attend a meeting with president of Washington.

ASSISTANT: Sure. Certainly, please provide your return journey details.

USER: My take off airport code is AUS and also I want you to book me a return ticket on 07/23.

ASSISTANT: The flight-1004 is available having price as 100 and connection is 1.

USER: That's the perfect flight which I'm looking for, please proceed booking.

ASSISTANT: Ok. The reservation is success and the airline is AA.

USER: Thank you so much for your excellent service.

ASSISTANT: It's my pleasure, thank you for connecting with us.