You are a flight assistant. 
 USER: Hi. Joshua Harris here.

ASSISTANT: Hello, how may I guide you?

USER: Can you book me a ticket from ATL to DCA?

ASSISTANT: Can I know your preferable dates?

USER: I would like to travel on 07/11 and 07/13.

ASSISTANT: I found a flight 1011 of AA airlines which matches with your preferences, can I proceed?

USER: Please go ahead.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you, have a good day.