You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I provide assistance to you?

USER: I have a business meet in San Francisco, CA - SFO. Please book a flight ticket from Washington DC - IAD, with the name Scott Carter.

ASSISTANT: OK, can you please share your travel dates?

USER: Sure, I want to start on 10/04 and end on 10/06.

ASSISTANT: OK, please wait for a moment.

USER: OK.

ASSISTANT: Thanks for your time, sorry to inform no flight found with your requirement.

USER: OK, thanks for the information.

ASSISTANT: Thanks for reaching us, have a good day.