You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you for the day?

USER: My name is George Anderson, I want to book a flight ticket from NV - LAS to DC - DCA to meet my friend in Washington.

ASSISTANT: When you are willing to travel?

USER: My departure day is 10/12, return day is 10/14. I want a direct flight.

ASSISTANT: Do you have any other specifications?

USER: My price limit is 1000.

ASSISTANT: Please, wait for a moment.

USER: Sure.

ASSISTANT: Sorry, we found no flight with your specification.

USER: No issue, thank you.

ASSISTANT: Thank you for reaching us. have a great day.