You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I guide you?

USER: I am Stephen Anderson. I would like to book a flight ticket from SFO to DFW.

ASSISTANT: Sure, can I know your preferable dates?

USER: I am planning to start on 08/18 and return back on 08/20.

ASSISTANT:  I found a flight 1013 of AA airlines matches with your preferences, can I proceed?

USER: Yes, please proceed.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you.